Jammed

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About Status Effects
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ATK is greatly boosted based on how low HP is.

About Jammed

JammedATK is greatly boosted based on how low HP is
is a unique ATK buff that stacks multiplicatively with all other ATK buffs such as ATK UpATK is boosted
, HypeATK is boosted
, etc. Single target Jammed will stack with teamwide Jammed; two effects of the same stacking side will replace each other based on strength, regardless of source. Regardless of its side, Jammed stacks additively with Enmity from Character Extended Mastery Perks and Over Mastery Bonuses.

Sources

Element Stacking Side
Single Target Teamwide

 Agielba Turn the Tables300%-800% Fire damage to a foe based on how low Agielba's HP is (Damage cap: ~665,000).
Gain JammedATK is greatly boosted based on how low HP is
Strength: 26.6%-80%Multiplier: UniqueDuration: 3 turns
.
At level 100:
Now always deals 800% Fire damage to a foe (Damage cap: ~810,000).
Also gain Charge Bar +20%Instantly boosts Charge Bar by 20%
Strength: 20%
and Guaranteed TA (1 time)Guaranteed triple attack regardless of Triple Attack Lowered debuffs
Duration: Indefinite
.

 Beatrix (Summer) Rising StarsGain JammedATK is greatly boosted based on how low HP is
Strength: 30%-90%Duration: 8 turns
, 50% Bonus Fire DMGDeals bonus fire DMG for one-foe one-ally attacks
Strength: 50%Duration: 1 turn
, and Double StrikeAttacks twice each turn
Duration: 1 turn
.
(Consumes 40% of max HP.)

 Ragazzo Se Non Ora QuandoSacrifice 99% of caster's HP to gain TrascendenzaCan withstand lethal DMG / ATK is greatly boosted based on how low HP is / Skills' additional effects activate without consuming Energia / Ends cooldown for all skills except Se Non Ora Quando at end of turn (Can't be removed)
Duration: 2 turns
and Instant ChargeInstantly sets Charge Bar to 100%
Unaffected by Charge Bar Gain status effects.
No effect when afflicted with Shorted debuffs or when Charge Bar is above 100%.
.
(Will be knocked out when effect ends.)

 Vaseraga (Fire) No PainGain JammedATK is greatly boosted based on how low HP is
Strength: 45%-90%Duration: 8 turns
, 100% DEF UpDEF is boosted
Strength: 100%Duration: 3 turns
, Substitute (All-Ally)Receives all attacks in place of allies
(Includes all-ally attacks)
Duration: 1 turn
, and Lethal Attack Dodged (1 time)Can withstand lethal DMG (Leaves 1 HP / Can't be removed)
Duration: 1 turn
.
(Consumes 25% of max HP.)

 Yuisis (Fire) Skyblade Shadowstitch 450%Massive Fire damage to a foe.
Gain JammedATK is greatly boosted based on how low HP is
Strength: 26.6%-79.8%Duration: 2.5 turnsApplied during the attack phase.
On the next turn, it'll have 2 turns remaining.
.
(When below 25% HP: Also gain Shield (3000)Next ATK received will be ineffective for a fixed amount
Strength: 3000Duration: Indefinite
.)

 Beatrix (Halloween) Soaring StarGain JammedATK is greatly boosted based on how low HP is
Strength: 30%-90%Duration: 8 turns
.
(Consumes 40% of max HP.)

 Black Dragon's Maw Blazing Black Fang 450%Massive Fire damage to a foe.
Gain JammedATK is greatly boosted based on how low HP is
Strength: 15%-45%Duration: 2.5 turnsApplied during the attack phase.
On the next turn, it'll have 2 turns remaining.
.
After 4★:
Damage increased to 550%.
JammedATK is greatly boosted based on how low HP is
Strength: 20%-60%Duration: 2.5 turnsApplied during the attack phase.
On the next turn, it'll have 2 turns remaining.
strength increased.
Also gain Charge Bar +20%Instantly boosts Charge Bar by 20%
Strength: 20%
.

 Gangsta Knife Say Your Prayers Massive Fire damage to a foe.
Gain JammedATK is greatly boosted based on how low HP is
Duration: 2.5 turnsApplied during the attack phase.
On the next turn, it'll have 2 turns remaining.
.
After 4★:
Also gain Shield (2000)Next ATK received will be ineffective for a fixed amount
Strength: 2000Duration: 2.5 turnsApplied during the attack phase.
On the next turn, it'll have 2 turns remaining.
.
(When MC is below 25% HP: JammedATK is greatly boosted based on how low HP is
Duration: 2.5 turnsApplied during the attack phase.
On the next turn, it'll have 2 turns remaining.
and Shield (2000)Next ATK received will be ineffective for a fixed amount
Strength: 2000Duration: 2.5 turnsApplied during the attack phase.
On the next turn, it'll have 2 turns remaining.
affect all allies.)

 Scathacha (Valentine) Tathlum Flambe 450%Massive Fire damage to a foe.
All allies gain JammedATK is greatly boosted based on how low HP is
Strength: 10%-20%Duration: 3.5 turnsApplied during the attack phase.
On the next turn, it'll have 3 turns remaining.
.
End cooldown for Mellow Quest.

 Gangsta Knife Say Your Prayers Massive Fire damage to a foe.
Gain JammedATK is greatly boosted based on how low HP is
Duration: 2.5 turnsApplied during the attack phase.
On the next turn, it'll have 2 turns remaining.
.
After 4★:
Also gain Shield (2000)Next ATK received will be ineffective for a fixed amount
Strength: 2000Duration: 2.5 turnsApplied during the attack phase.
On the next turn, it'll have 2 turns remaining.
.
(When MC is below 25% HP: JammedATK is greatly boosted based on how low HP is
Duration: 2.5 turnsApplied during the attack phase.
On the next turn, it'll have 2 turns remaining.
and Shield (2000)Next ATK received will be ineffective for a fixed amount
Strength: 2000Duration: 2.5 turnsApplied during the attack phase.
On the next turn, it'll have 2 turns remaining.
affect all allies.)
(4★ / Below 25% HP)

 AgniFlames of Judgement 400% Fire damage to all foes (Damage cap: ~840,000).
Inflict Burned (5000)HP is lowered on every turn
Strength: 5000Base Accuracy: 100%Duration: 180 seconds
.
All allies gain JammedATK is greatly boosted based on how low HP is
Strength: 4%-10%Duration: 3 turns
.
(4★)
 Cerberus (Summer)Dog Days Triad 3-hit Fire damage to random foes.
All Fire allies gain JammedATK is greatly boosted based on how low HP is
Duration: 3 turns
.
(Consumes 25% of each Fire ally's current HP.)

 Cerberus (Summer)Sub AuraFire allies start battle with Dispel Cancel (1 time)Buffs can't be removed or shortened (1 time)
Duration: Indefinite
and JammedATK is greatly boosted based on how low HP is
Strength: 10%-20%Duration: 3 turns
.

 Kolulu (Summer) Brilliant ShineGain 10% UpliftedCharge bar is boosted on every turn
Strength: 10%Duration: 5 turns
and Unchallenged (2 times)Next DMG received will be ineffective
Duration: Indefinite
.
(When below 25% HP: Also gain Shield (3000)Next ATK received will be ineffective for a fixed amount
Strength: 3000Duration: Indefinite
and JammedATK is greatly boosted based on how low HP is
Strength: 30%-90%Duration: 5 turnsStacking: Single Target
.)

 Siegfried (Summer) Zwei Harpunieren2-hit, 400% Water damage to random foes (Damage cap: ~420,000 per hit).
Gain JammedATK is greatly boosted based on how low HP is
Strength: 15%-45%Duration: 3 turns
.

 Vane (SSR) BreakthroughGain JammedATK is greatly boosted based on how low HP is
Strength: 30%-90%Duration: 8 turns
and Hostility Up (Stackable)More likely to be attacked (Stackable / Can't be removed)
Duration: 8 turns
.
(Consumes 40% of max HP)
At level 100:
No longer gain Hostility Up (Stackable)More likely to be attacked (Stackable / Can't be removed)
Duration: 8 turns
.
Also gain 100% DEF UpDEF is boosted
Strength: 100%Duration: 1 turn
, Substitute (All-Ally)Receives all attacks in place of allies
(Includes all-ally attacks)
Duration: 1 turn
, and Lethal Attack Dodged (1 time)Can withstand lethal DMG (Leaves 1 HP / Can't be removed)
Duration: 1 turn
.

 Meteora Romeo Delight Massive Water damage to a foe.
Gain Charge Bar +20%Instantly boosts Charge Bar by 20%
Strength: 20%
.
After 4★:
Gain JammedATK is greatly boosted based on how low HP is
Duration: 3.5 turnsApplied during the attack phase.
On the next turn, it'll have 3 turns remaining.
.
(4★)

 Jeanne d'Arc (Water Summer) ConfrontSacrifice 80% of caster's current HP.
All Water allies gain JammedATK is greatly boosted based on how low HP is
Strength: 30%-90%Duration: 5 turns
.
(Based on DesireBased on lvl: Bonus Water DMG effect / DMG and DMG cap for normal attacks and counterattacks are boosted (Max: Lvl 5 / Can't be removed)
lvl:
All Water allies also gain Bonus Water DMGDeals bonus water DMG for one-foe one-ally attacks
Duration: 3 turns
and Water ATK UpWater ATK is boosted
Duration: 3 turns
.)

 Kolulu (Summer) Tallyho!Tallyho!:
6-hit, 100% Water damage to a foe (Damage cap: ~130,000 per hit~800,000 total).
Inflict BlindedAttacks have a slight chance to miss
Base Accuracy: 90%Duration: 180 seconds
and 20% DEF DownDEF is lowered
Strength: 20%Base Accuracy: 90%Duration: 180 secondsStacking: Single
.
(Changes to Tallyho, Auguste! when Kolulu's Deluge CrestWater magic is amplified (Max: 5 / Can't be removed)
is 3 or more.)
Tallyho, Auguste!:
12-hit, 100% Water damage to a foe (Damage cap: ~130,000 per hit~1,600,000 total).
Inflict BlindedAttacks have a slight chance to miss
Base Accuracy: 90%Duration: 180 seconds
and 25% DEF DownDEF is lowered
Strength: 25%Base Accuracy: 90%Duration: 180 secondsStacking: Single
.
All allies gain JammedATK is greatly boosted based on how low HP is
Strength: 10%-20%Duration: 3 turnsStacking: Teamwide
.

 Dayspring Morning Gleam Massive Water damage to a foe.
All allies gain Water ATK UpWater ATK is boosted
Duration: 3.5 turnsApplied during the attack phase.
On the next turn, it'll have 3 turns remaining.
.
After 4★:
All allies also gain JammedATK is greatly boosted based on how low HP is
.
(4★)

 Ayer Guilty BreakGain Guilty BreakATK is greatly boosted based on how low HP is
Strength: 40%-120%Duration: 8 turns
.
(Consumes 25% of max HP.)

 Beatrix (Earth) Rising NovaGain JammedATK is greatly boosted based on how low HP is
Strength: 30%-90%Duration: 8 turns
, 50% Bonus Earth DMGDeals bonus earth DMG for one-foe one-ally attacks
Strength: 50%Duration: 1 turn
, and Double StrikeAttacks twice each turn
Duration: 1 turn
.
(Consumes 40% of max HP.)

 Kolulu (Earth) Blossom Stroll 450%Massive Earth damage to a foe.
Gain JammedATK is greatly boosted based on how low HP is
Strength: 26.6%-79.8%Duration: 2.5 turnsApplied during the attack phase.
On the next turn, it'll have 2 turns remaining.
.
End cooldown for  Tallyho Style5-hit, 100% Earth damage to all foes (Damage cap: ~92,000 per hit).
Inflict 10% ATK Down (Stackable / Max: 40%)ATK is lowered (Stackable)
Strength: 10% (Max: 40%)Duration: 180 seconds
and 10% DEF Down (Stackable / Max: 40%)DEF is lowered (Stackable)
Strength: 10% (Max: 40%)Duration: 180 seconds
.
(Consumes 40% of caster's max HP to end cooldown.
When 5 Wasteland CrestEarth magic is amplified (Max: 5 / Can't be removed)
are granted:

Activates twice.)
and  Golly Cute!Gain 1 Wasteland CrestEarth magic is amplified (Max: 5 / Can't be removed)
Duration: Indefinite
, 100% DEF UpDEF is boosted
Strength: 100%Duration: 3 turns
, and Shield (3000)Next ATK received will be ineffective for a fixed amount
Strength: 3000Duration: 3 turns
.
Remove 1 debuff.

 Shushuku Tectonic Slash4-hit, 150% Earth damage to all foes (Damage cap: ~148,000 per hit).
Gain 10% UpliftedCharge bar is boosted on every turn
Strength: 10%Duration: 5 turns
.
After clearing 5th Fate Episode at Rushou's Yupei level 9:
(When HP is 50% or above: Also gain Supplemental C.A. DMGC.A. DMG dealt is supplemented
Strength: 300,000Duration: 1 turn
.)
(When HP is below 50%: Also gain JammedATK is greatly boosted based on how low HP is
Strength: 30%-90%Duration: 3 turns
.)

 Siegfried ManiganceSacrifice 50% of caster's current HP to gain JammedATK is greatly boosted based on how low HP is
Duration: 8 turns
.
At level 100:
No longer gain JammedATK is greatly boosted based on how low HP is
Duration: 8 turns
.
Gain ManiganceATK is greatly boosted based on how low HP is / Maximum amount of DMG that can be dealt per hit is boosted / Double attack rate is boosted / Triple attack rate is boosted / Chance of lowering DMG taken
(Can't be removed)
Duration: 8 turns
and Undying (1 time)Can withstand lethal DMG (Leaves 1 HP / Can't be removed)
.

 Skull and Balurga Crazy StarSacrifice 80% of caster's current HP to gain UnchallengedNext DMG received will be ineffective
Duration: 2 turns
and JammedATK is greatly boosted based on how low HP is
Strength: 40%-120%Duration: 8 turns
.
(When below 25% HP: Also gain Undying (1 time)Can withstand lethal DMG (Leaves 1 HP / Can't be removed)
Duration: Indefinite
.)

 Threo Vorpal RageEarth damage to a foe (Damage cap: ~630,000).
Gain JammedATK is greatly boosted based on how low HP is
Strength: 30%-90%Duration: 3 turns
and DrainNormal attack and C.A. DMG dealt is partially absorbed to HP
Strength: (Healing cap: 3333)Duration: 1 turn
.

 Ayer (Summer) Blazing BreakGain Blazing BreakATK is greatly boosted based on how low HP is
Strength: 30%-90%Duration: 5 turns
.
(Consumes 40% of max HP.)
At level 45:
Effect enhanced.

 Beatrix (SR) Recurrent DriveEarth damage to a foe (Damage cap: ~290,000).
Gain 50% Earth ATK UpEarth ATK is boosted
Strength: 50%Duration: 3 turns
.
(From 2nd cast onward: Also gain 20% Bonus Earth DMGDeals bonus earth DMG for one-foe one-ally attacks
Strength: 20%Duration: 3 turns
.)
(From 3rd cast onward: Also gain JammedATK is greatly boosted based on how low HP is
Duration: 3 turns
.)

 Paris (Event) Becco di FalcoGain JammedATK is greatly boosted based on how low HP is
Duration: 3 turns
.
At level 65:
Also gain Critical Hit Rate UpAttacks made with elemental superiority have a chance to deal boosted DMG
Duration: 3 turns
.

 True Grit Gritty Impact Massive Earth damage to a foe. / Gain JammedATK is greatly boosted based on how low HP is
Duration: 2.5 turnsApplied during the attack phase.
On the next turn, it'll have 2 turns remaining.
.

 Gawain Rebellion1000% Wind damage to all foes (Damage cap: ~1,160,000).
Gain JammedATK is greatly boosted based on how low HP is
Strength: 30%-90%Duration: 8 turns
.
(Consumes 30% of max HP.)

 Izuku Midoriya Smash! 450%Massive Wind damage to a foe.
Gain JammedATK is greatly boosted based on how low HP is
Strength: 26.6%-79.8%Duration: 3.5 turnsApplied during the attack phase.
On the next turn, it'll have 3 turns remaining.
.

 Noire Abyssal SurgeSacrifice 40% of caster's current HP to gain JammedATK is greatly boosted based on how low HP is
Strength: 30%-90%Duration: 3 turns
, 100% / 20% Critical Hit Rate UpAttacks made with elemental superiority have a chance to deal boosted DMG
Strength: 100% chance of dealing 20% more damage.Duration: 3 turns
, KeenSupplemental DMG to critical hits
Strength: 1% of foe's max HP (Damage cap: 50,000)Duration: 3 turns
, 30% DMG AmplifiedDMG for one-foe attacks and counterattacks is amplified
Strength: 30%Duration: 3 turns
, and Double StrikeAttacks twice each turn
Duration: 2 turns
.

 Scathacha Power Seeker200%-900% Wind damage to a foe based on how low Scathacha's HP is (Damage cap: ~720,000).
When Dragon's FuryNext Power Seeker's DMG and DMG cap boosted
is consumed:

Damage increased to 300%-1400% and damage cap increased to ~1,440,000.
At level 100:
Also gain JammedATK is greatly boosted based on how low HP is
Strength: 26.6%-80%Duration: 3 turns
and Guaranteed TAGuaranteed triple attack regardless of Triple Attack Lowered debuffs
Duration: 1 turn
.

 Sho Full ThrottleSacrifice 80% of caster's current HP to gain UnchallengedNext DMG received will be ineffective
Duration: 2 turns
and JammedATK is greatly boosted based on how low HP is
Strength: 40%-120%Duration: 8 turns
.
(When below 25% HP: Also gain Undying (1 time)Can withstand lethal DMG (Leaves 1 HP / Can't be removed)
Duration: Indefinite
.)

 Siegfried (Yukata) Messager1000% Wind damage to all foes (Damage cap: ~1,160,000).
Gain JammedATK is greatly boosted based on how low HP is
Strength: 90%-30%Duration: 8 turns
and Tank-and-Counter (3 times)Counters upon taking DMG
Strength: 200%Duration: 3 turnsCounter attacks grant 5% charge bar per hit.
.
(When below 25% HP: Also gain Double StrikeAttacks twice each turn
Duration: 1 turn
.)

 Suzaku Kururugi White Knight500% Wind damage to a foe (Damage cap: ~580,000).
Gain JammedATK is greatly boosted based on how low HP is
Strength: 20%-60%Duration: 3 turns
.
(Consumes 30% of max HP)

 Yuisis (Yukata) Skyblade Eleganza Big Wind damage to a foe.
Various effects based on ChivalryChivalry lvl increases upon taking DMG
(After charge attack, gain various effects on based on Chivalry lvl)
lvl.
(Consumes all ChivalryChivalry lvl increases upon taking DMG
(After charge attack, gain various effects on based on Chivalry lvl)
.)
(possible effect)Gains Jammed effect when ChivalryChivalry lvl increases upon taking DMG
(After charge attack, gain various effects on based on Chivalry lvl)
lvl is 5.

 Destiny Knuckles Let's Dance Massive Wind damage to a foe.
Gain 30% Bonus Wind DMGDeals bonus wind DMG for one-foe one-ally attacks
Strength: 30%Duration: 3.5 turnsApplied during the attack phase.
On the next turn, it'll have 3 turns remaining.
.
After 4★:
Also gain JammedATK is greatly boosted based on how low HP is
Strength: 20%-60%Duration: 3.5 turnsApplied during the attack phase.
On the next turn, it'll have 3 turns remaining.
.
(4★)
 Hatsoiiłhał Schwarzer Nebel Massive Wind damage to a foe.
Gain JammedATK is greatly boosted based on how low HP is
Strength: 10%-20%Duration: 3.5 turnsApplied during the attack phase.
On the next turn, it'll have 3 turns remaining.
.
After 4★:
JammedATK is greatly boosted based on how low HP is
Strength: 10%-20%Duration: 3.5 turnsApplied during the attack phase.
On the next turn, it'll have 3 turns remaining.
now affects all allies.
(pre-4★)

 Hatsoiiłhał Schwarzer Nebel Massive Wind damage to a foe.
Gain JammedATK is greatly boosted based on how low HP is
Strength: 10%-20%Duration: 3.5 turnsApplied during the attack phase.
On the next turn, it'll have 3 turns remaining.
.
After 4★:
JammedATK is greatly boosted based on how low HP is
Strength: 10%-20%Duration: 3.5 turnsApplied during the attack phase.
On the next turn, it'll have 3 turns remaining.
now affects all allies.
(4★)

 DemonbreamFlaming Leap Massive Wind damage to all foes.
All Wind allies gain JammedATK is greatly boosted based on how low HP is
Strength: 5%-15%Duration: 2 turns
. (Consumes 25% of each Wind ally's current HP.)

 The Eternal DefendersEternals Assemble Inflict ParalyzedCan't attack
Base Accuracy: 30%Duration: 1 turn Local status effect
, PetrifiedStops enemy's charge diamonds from filling.
Base Accuracy: 50%Duration: 1 turn Local status effect
, Lethal HitInstant death for the victim.
Base Accuracy: 20%
, TuneHP is lowered on every turn based on Tune lvl (Max: 10 / Can't be removed)
Base Accuracy: 80%Duration: 180 seconds
, and Bounty lvl 1Item drop rate is boosted
on all foes.
All allies gain 10% DMG CutTaking 10% less DMG
Strength: 10%Duration: 1 turn Damage Cut reducing damage taken for all elements.
Warning! Does not work for Plain Damage!
, JammedATK is greatly boosted based on how low HP is
Duration: 1 turn
, 3% Debuff Success BoostedDebuff success rate is boosted
Strength: 3%Duration: 1 turn
, RefreshHP is restored on every turn
Strength: 1% of max HP (Healing cap: 150)Duration: 1 turn
, and C.A. DMG Up (1 time)Charge attack DMG is boosted (1 time)
Duration: Indefinite
.

 Gawain (Light) OnslaughtGain JammedATK is greatly boosted based on how low HP is
Strength: 30%-90%Duration: 8 turns
, 50% Bonus Light DMGDeals bonus light DMG for one-foe one-ally attacks
Strength: 50%Duration: 1 turn
, and Double StrikeAttacks twice each turn
Duration: 1 turn
.
(Consumes 40% of max HP.)

 Geisenborger I'll Bet My SoulGain Impregnable FortressDebuffs will be nullified / Jammed effect / Can withstand lethal DMG (Leaves 1 HP) (Can't be removed) (Effect duration extends upon being targeted by a light ally's healing skill or buff skill)
Strength: 40%-120%Duration: 5 turns
.
(Will be knocked out when effect ends.)
(Effect duration extends upon being targeted by a Light ally's healing skill or buff skill.)

 Yorozuya By My Own RulesGain SubstituteReceives foe attack in place of an ally
(Excludes all-foe all-ally attacks)
Duration: 1 turn
and 80% DEF UpDEF is boosted
Strength: 80%Duration: 2 turns
.
(Gain additional buffs based on Gin TamaAttack specs are boosted based on Gin Tama's radiance / Gin Tama slowly shines brighter when cooperating with or fighting for the sake of allies (Max: 3 stages / Can't be removed)
's radiance.)
(possible effect)Gains JammedATK is greatly boosted based on how low HP is
Strength: 30%-90%Duration: 3 turns
when Yorozuya has Gin TamaAttack specs are boosted based on Gin Tama's radiance / Gin Tama slowly shines brighter when cooperating with or fighting for the sake of allies (Max: 3 stages / Can't be removed)
.

 Meteor's Light Photon Ray Massive Light damage to a foe.
Gain JammedATK is greatly boosted based on how low HP is
Duration: 2.5 turnsApplied during the attack phase.
On the next turn, it'll have 2 turns remaining.
.

 Beatrix Soaring StarGain JammedATK is greatly boosted based on how low HP is
Strength: 30%-90%Duration: 8 turns
.
(Consumes 40% of max HP.)

 Fiorito (Holiday) Tri-Wish Smash150% Dark damage to a foe (Damage cap: ~190,000).
Random buff effect to caster.
(Boost to damage specs and additional buffs based on how many melee weapons are equipped.)
(possible effect)Randomly gains JammedATK is greatly boosted based on how low HP is
Strength: 40%-120%Duration: 1 turn
.
When at least 5 melee weapons are equipped, all effects are granted.

 Lowain (SSR) One Order of Champeri Shower! 450%Massive Dark damage to a foe.
Gain Shield (5000)Next ATK received will be ineffective for a fixed amount
Strength: 5000Duration: 2.5 turnsApplied during the attack phase.
On the next turn, it'll have 2 turns remaining.
and JammedATK is greatly boosted based on how low HP is
Strength: 26.6%-79.8%Duration: 2.5 turnsApplied during the attack phase.
On the next turn, it'll have 2 turns remaining.
.
(While Champeri TowerDark allies' C.A. specs are boosted / C.A. DMG dealt is supplemented / Charge bar is boosted every turn (Can't be removed)
is in effect:
All Dark allies gain HypeATK is boosted
Duration: 2.5 turnsApplied during the attack phase.
On the next turn, it'll have 2 turns remaining.
.)

 Predator (SSR) Creeping ShadowGain JammedATK is greatly boosted based on how low HP is
Strength: 30%-90%Duration: 8 turns
, 50% Bonus Dark DMGDeals bonus dark DMG for one-foe one-ally attacks
Strength: 50%Duration: 1 turn
, and Double StrikeAttacks twice each turn
Duration: 1 turn
.
(Consumes 40% of max HP.)

 Sarunan (Dark) Dissonant Desire Massive Dark damage to a foe.
Gain JammedATK is greatly boosted based on how low HP is
Strength: 25%-80%Duration: 3.5 turnsApplied during the attack phase.
On the next turn, it'll have 3 turns remaining.
.

 Tikoh (Halloween) Strana DolceSacrifice 40% of Dark allies' current HP to gain Stimolante (3 uses)Consumes 1 Stimolante use and 20% of current HP to gain buffs at end of turn (Can't be removed)
Duration: Indefinite
, 30% ATK UpATK is boosted (Can't be removed)
Strength: 30%Multiplier: PerpetuityDuration: 1 turn
, and 50% TA UpTriple attack rate is boosted (Can't be removed)
Strength: 50%Duration: 1 turn
.
(At end of turn if more than 1 StimolanteConsumes 1 Stimolante use and 20% of current HP to gain buffs at end of turn (Can't be removed)
use remains:

Consume 1 use and 20% of current HP to gain buffs.
If only 1 StimolanteConsumes 1 Stimolante use and 20% of current HP to gain buffs at end of turn (Can't be removed)
use remains:

Consume 1 use and restore HP instead [Healing cap: 20,000].)

 Vaseraga Instinction500% Dark damage to a foe (Damage cap: ~800,000).
At level 75:
Damage increased to 550%.
At level 90:
Damage increased to 800%.
Now hits all foes.
Also gain JammedATK is greatly boosted based on how low HP is
Strength: 26.6%-79.8%Duration: 3 turns
.
(When Aubade GrynothSkill DMG specs are boosted (Can't be removed)
is in effect:
Auto-activates upon being targeted by a foe.)

 Zooey (Grand) Resolution300%-1600% superior element damage to a foe (Damage cap: ~700,000).
(Boost to damage based on how low Zooey's HP is.)
Gain JammedATK is greatly boosted based on how low HP is
Strength: 25%-80%Duration: 3 turns
.
At level 55:
Effect enhanced.

 Jamil (Dark) Golge AdimGain JammedATK is greatly boosted based on how low HP is
Strength: 20% - 60%Duration: 5 turns
and Mode Bar Cut BoostedCut to overdrive gauge is boosted
Duration: 5 turns
.
(Consumes 30% of max HP.)

 Gram Saga of the Volsungs Massive Dark damage to a foe.
Inflict DelayReduce a foe's filled charge diamonds by 1
.
After 4★:
Gain JammedATK is greatly boosted based on how low HP is
.
(4★)

 Rainy DaySqualene Squall Massive Dark damage to all foes.
Inflict Emergency AlertAttacks have a chance to miss / Shark is coming on the next turn
Duration: 1 turn Rainy Day will deal 495,000 Plain damage at the end of a turn.Local status effect
on one foe or Emergency AlertAn ally other than MC or Lyria will be knocked out after 2 turns / Will gain Jammed effect when the ally is knocked out
Duration: 2 turns
on caster.

 Malinda (Event) Growing PainsForms into adult.
Gain 30% ATK UpATK is boosted according to form
Strength: 30%Multiplier: NormalDuration: 9 turns
, JammedATK is greatly boosted based on how low HP is
Strength: 10%-30%Duration: 9 turns
and 15% DEF UpDEF is boosted according to form
Strength: 15%Duration: 9 turns
.
(Consumes 50% of charge bar.)

 Knifehand StrikeGain Tank-and-Counter (3 times)Counters upon taking DMG
Strength: 350% DMGDuration: 2 turnsCounter attacks grant 5% charge bar per hit.
, 30% DEF UpDEF is boosted
Strength: 30%Duration: 2 turns
, and Hostility UpMore likely to be attacked
Strength: 20Duration: 2 turns
.
At level 30:
Hostility UpMore likely to be attacked
Strength: 20Duration: 2 turns
upgraded to Full Hostility100% chance to be targeted by one-ally attacks
Duration: 2 turnsFull hostility has the same properties as Substitute, but has lower targeting priority than Substitute
.
Also gain JammedATK is greatly boosted based on how low HP is
Strength: 30%-90%Duration: 2 turns
.

 In the Face of AdversityGain JammedATK is greatly boosted based on how low HP is
Strength: 40%-120%Duration: 3 turns
, 20% DMG AmplifiedDMG for one-foe attacks and counterattacks is amplified
Strength: 20%Multiplier: SeraphicDuration: 3 turns
, and 20% DMG Cap UpMaximum amount of DMG that can be dealt per hit is boosted
Strength: 20%Duration: 3 turns
.
(Consumes 25% of max HP.)

 Engage AugmentsGain 5 Machine CellConsumed upon normal attacks and using skills (Can't be removed / Max: 5)
Duration: Indefinite
(Max: 5) and restore HP (Healing cap: 2000).
(When HP is 50% or above: Also gain StrengthATK is greatly boosted based on how high HP is
Strength: 45%-15%Duration: 3 turns
.)
At level 30:
(When HP is below 50%: Also gain JammedATK is greatly boosted based on how low HP is
Strength: 30%-90%Duration: 3 turns
.)

 FortitudeGain 10% DMG AmplifiedDMG for one-foe attacks and counterattacks is amplified
Strength: 10%Multiplier: SeraphicDuration: 5 turns
, JammedATK is greatly boosted based on how low HP is
Strength: 7%-20%Duration: 5 turns
, and 70% / 50% Critical Hit Rate UpAttacks made with elemental superiority have a chance to deal boosted DMG
Strength: 70% chance of dealing 50% more damage.Duration: 5 turns
.

 Molon LabeAll allies gain 20% Bonus DMGDeals bonus DMG for one-foe one-ally attacks
Strength: 20%Duration: 3 turns
, JammedATK is greatly boosted based on how low HP is
Strength: 30%-90%Duration: 8 turns
, Lethal Attack Dodged (1 time)Can withstand lethal DMG (Leaves 1 HP)
Duration: Indefinite
, and Shield (3000)Next ATK received will be ineffective for a fixed amount
Strength: 3000Duration: Indefinite
.
(Consumes 40% of each ally's current HP.)

 Crestfallen FlowerGain 50% Debuff Res. UpDebuff resistance is boosted
Strength: 50%Duration: 3 turns
.
Spear: All allies gain StrengthATK is greatly boosted based on how high HP is
Strength: 20%-10%Duration: 3 turns20% when above 50% HP
Below 50% HP, strength decreases linearly until 10% minimum
.
Axe: All allies gain JammedATK is greatly boosted based on how low HP is
Strength: 10%-20%Duration: 3 turns20% when below 50% HP
Above 50%, strength decreases linearly until 10% at 100% HP
.

Sources of Jammed (Party)

Element Stacking Side
Unknown
 Karva AdversityGain Jammed (Party)ATK is greatly boosted based on how low total party HP is
Duration: 3 turns
.

Character Support Skills

Some characters have support skills which boost their ATK as their HP decreases. How such support skills stack with Enmity weapon skills is currently unverified. NoteStamina from support skills stack additively with Stamina weapon skills but are not boosted by summon auras.
Japanese GBF wikis list these support skills as unique multipliers instead.
Element Affects
All Allies Self

 Yuisis (Fire) Seventh AnniversaryStarts battle with Lethal Attack Dodged (1 time)Can withstand lethal DMG (Leaves 1 HP / Can't be removed)
Duration: Indefinite
.
Big boost to all allies' ATKUnique modifier based on how low Yuisis's HP is.

 Zahlhamelina Sun WorshipBig boost to all allies' ATKUnique modifier based on how low Zahlhamelina's HP is.

 Yngwie (Legend of Bravado and Revelry) Borderline IIIBoost to Yngwie's ATKMultiplier: Normal Enmity based on how low HP is.
Activate Disciples of Hell at end of turn when HP is 50% or below.

 Therese (Event) Two-FacedBoost to ATK as HP decreases.

 Beatrix (Earth) Embrasque Resonance20% hit to charge bar gain.
Guaranteed double attacks and 50% boost to triple attack rate.
Big boost to Earth allies' ATK based on how low Beatrix's HP is.

 Fiorito Devoting My Entire BeingBoost to ATK and DEF based on how low HP is.
 Trilok SmashEarth damage to a foe based on how many Melee weapons are equipped.
Inflict 25% DEF DownDEF is lowered
Strength: 25%Base Accuracy: 100%Duration: 180 secondsStacking: Single
, 10% DA Down (Stackable / Max: 40%)Double attack rate is lowered (Stackable)
Strength: 10% (Max: 40%)Duration: 180 seconds
, and 10% TA Down (Stackable / Max: 40%)Triple attack rate is lowered (Stackable)
Strength: 10% (Max: 40%)Duration: 180 seconds
.
activates at end of turn when below 25% HP.
Take a lethal hit without being knocked out (Consumes 1 Rosa PackConsumes 1 Rosa Pack to withstand lethal DMG (Leaves 1 HP) (Max: 6 / Can't be removed)
/ Leaves 1 HP).

 Sara Graphos's KindnessBoost to ATKMultiplier: Normal Enmity based on how low HP is.

 Noire Fallen Angel's LossBig boost to Wind allies' ATKMultiplier: Unique based on how low Noire's HP is.
 Scathacha Claw of the DragonBig boost to all allies' ATKMultiplier: Unique based on how low Scathacha's HP is.

 Gawain (Light) Knight's ResolutionStarts battle with Lethal Attack Dodged (1 time)Can withstand lethal DMG (Leaves 1 HP / Can't be removed)
Duration: Indefinite
.
Big boost to all allies' ATKUnique modifier based on how low Gawain's HP is.

 Danua (SSR) NotlageBoost to Danua's ATK based on how low HP is.
Withstand lethal turn-based damage (Leaves 1 HP).

 Predator (SSR) Skulking Black TearsBig boost to all allies' ATKUnique modifier based on how low Predator's HP is.

 Black Knight Sword of DespairIgnore Fire, Water, Earth, and Wind elemental resistance.
Deal superior elemental damage regardless of foe element.
Boost to Black Knight's ATK and DEF based on how low HP is.

 Jeanne d'Arc (Dark) La Pucelle d'ArcStarts battle with Undying (1 time)Can withstand lethal DMG (Leaves 1 HP / Can't be removed)
Duration: Indefinite
.
Boost to ATK based on how low HP is.

 Karyl Absolute SecrecyBoost to ATKUnique modifier based on how low Karyl's HP is. (Min: 0% - Max: 15%)
 Kolulu Reason to LiveBoost to Kolulu's ATKPerpetuity modifier and DEF based on how low HP is.
Starts battle with Lethal Attack Dodged (1 time)Can withstand lethal DMG (Leaves 1 HP / Can't be removed)
Duration: Indefinite
.
Tallyho activates at end of turn when HP is at 25% or below.

Character Extended Mastery Perks

Some characters have Enmity Character Extended Mastery Perks, which boost their ATK as their HP decreases.

Element Character

Dante
Dante (SR)
Kyojuro Rengoku
Naoise (Fire)
Scathacha (Valentine)
Therese (SSR)
Vaseraga (Fire)
Yuisis (Fire)

Kolulu (Summer)
Siegfried (Summer)
Vane

Beatrix (Earth)
Beatrix (SR)
Lancelot and Vane (Summer)
Nemone
Rackam (Holiday)
Vaseraga (Earth)

Heles (Wind)
Melissabelle
Miku Maekawa
Mimlemel and Stumpeye
Narmaya (Grand)
Nectar
Scathacha
Sen (Holiday)
Sho
Suzaku Kururugi

Daetta
Danua (SSR)
Gawain (Light)
Geisenborger
Rosamia (SSR)

Beatrix
Feather (Halloween)
Kolulu
Lowain (Summer)
Sarunan (Dark)
Seox
Vaseraga

Related Status Effects

Main article: StrengthATK is greatly boosted based on how high HP is