Leviathan Mare Omega (Raid)

This article is about the Impossible Omega III raid. For the regular raid, see Leviathan (Raid). For the Malice raid, see Leviathan Malice (Raid). For the Omega summon stone, see Leviathan Omega.

Raid

Grids

Guide

About Leviathan Mare Omega

Unlock Requirements

• Clear the quest Europa (Impossible) and the new raid battle will be added to Chapter 12: Auguste Isles - Auguste Falls.
• You must be rank 151 or higher to play this quest. You won't receive backup requests for it if you're below rank 151.

Need help? Check out the Guide and Grids pages for a fight breakdown and example teams!

Raid Battles

Impossible

CAUTION: Enemies take 90% reduced damage from elements other than Earth in these battles.

Leviathan Mare Omega (Impossible) Edit battle
Cost to Host: 50 AP, Water Crystal ×1 Water Quartz ×1	Cost to Join: Rank 151+, 3 EP	Unlock: Rank 151+, Clear Europa (Impossible)
Participants: 18 Vice: 2nd-3rd	Elixirs: Unlimited	Strike Time: YesStrike Time bonus applies for this raid.
Location: Chapter 12: Auguste Isles - Auguste Falls		Start QuestNetwork Errors will appear if the hosting conditions are not met. (AP, Host Materials, Daily Limit)
Lvl 200 Leviathan Mare Omega Lv200 リヴァイアサン・マレマグナ

Phase	Name	Lvl	HP	Charge	Mode
Phase 1	Leviathan Mare Omega	200	1,011,600,000	◇◇◇◇	Yes
	82,000 ATKEstimated damage taken from a 82,000 ATK foe DEF Element Base ATK DownATK is lowered 25% ATK DownATK is lowered 50% 10 Advantage 6,150 4,613 3,075 10 Neutral 8,200 6,150 4,100 10 Disadvantage 12,300 9,225 6,150 12 DEFEstimated damage dealt to a 12 DEF foe Element BaseRelative to damage dealt to neutral element foes in Party setup DEF DownDEF is lowered 25% DEF DownDEF is lowered 50% Advantage 125% 166.67% 250% Neutral 83.33% 111.11% 166.67% Disadvantage 62.5% 83.33% 125% 0%All earth damage taken reduced by 0%.0%All plain damage taken reduced by 0%. DEF DownDEF is lowered Not immune〇ATK DownATK is lowered Not immune〇GravityMax charge diamonds are increased Immune✕DelayReduce a foe's filled charge diamonds by 1 Not immune〇Debuff Res. DownDebuff resistance is lowered Not immune〇Lethal HitInstant death for the victim. Immune✕PoisonedHP is lowered on every turn Not immune〇BurnedHP is lowered on every turn Not immune〇PutrefiedHP is lowered on every turn Not immune〇BlindedAttacks have a slight chance to miss Not immune〇CharmedAttacks are slightly limited Not immune〇ZombifiedReceives DMG if healed Immune✕SleepCan't attack and takes big DMG (Ends upon taking DMG) ImmuneTakes 25% more damage✕ParalyzedCan't attack Immune✕PetrifiedCharge diamonds don't fill up Immune✕StunnedCan't attack Immunity unknown？Accuracy LoweredAttacks and special attacks have a chance to miss Not immuneLocal status effect〇
	Special Attacks		Triggers and Notes
	Reflective Depths TR 90% 60% 300% Water damage to all allies. Inflicts 50% Charge Bar Gain LoweredCharge bar gain is lowered Strength: 50%Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining.. Gains Reflective DepthsDebuff resistance is boosted / Cuts and reflects DMG (Can't be removed / Ends upon the chain burst Diastrofism) Strength: 30% Repel (10 times per turn / Cap: 1000)Duration: 4.5 turnsLocal status effectApplied during the attack phase. On the next turn, it'll have 4 turns remaining.. Tormentum Aquae N OD 400% Water damage to all allies. Raises InundationAfflicted by effects in order based on lvl: Hit to DEF / HP is lowered on every turn / Attacks restricted / When lvl 4 at end of turn: Will be knocked out (Max: 4 / Lvl lowers based on number of chains when an earth chain burst activates) Duration: Indefinite lvl by 1. Inflicts 30% Water DEF DownDEF is lowered for water DMG Strength: 30%Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining..		60% boost to Lifetree's weapon skills. Counts towards weapon skills that have a conditional boost amount. Normal attacks hit all allies. Triggered special attacks do not clear charge diamonds. Starts battle with Support SkillChance to raise target's Inundation lvl by 1 upon dealing DMG with normal attacks (Can't be removed) Duration: Indefinite, Mare EssentiaBased on lvl: ATK is boosted / DMG taken is cut / Chance to remove 2 buffs upon normal attacks (Can't be removed / Max: 10 / After allies use charge attacks 3 times or DMG skills 6 times within 1 turn: Lvl is lowered by 1 / Usage count is reset for that type) Duration: Indefinite, and Conditional LootDrop rate for conditional loot is boosted based on lvl (Can't be removed / Max: 10 / Lvl rises by 1 each time Essentia lvl is lowered) Duration: Indefinite. Mare EssentiaBased on lvl: ATK is boosted / DMG taken is cut / Chance to remove 2 buffs upon normal attacks (Can't be removed / Max: 10 / After allies use charge attacks 3 times or DMG skills 6 times within 1 turn: Lvl is lowered by 1 / Usage count is reset for that type) 5% ATK UpATK is boosted Strength: 5% (Max: 50%) per lvl (Max: 50%). 5% DMG CutTaking less DMG Strength: 5% (Max: 50%)Local status effect per lvl (Max: 50%). Chance to remove 2 buffs upon normal attacks based on lvl. After allies use charge attacks 3 times or DMG skills 6 times within 1 turn: Mare EssentiaBased on lvl: ATK is boosted / DMG taken is cut / Chance to remove 2 buffs upon normal attacks (Can't be removed / Max: 10 / After allies use charge attacks 3 times or DMG skills 6 times within 1 turn: Lvl is lowered by 1 / Usage count is reset for that type) lvl lowers by 1. Usage count is reset for that type. Conditional LootDrop rate for conditional loot is boosted based on lvl (Can't be removed / Max: 10 / Lvl rises by 1 each time Essentia lvl is lowered) Duration: Indefinite lvl increases by 1. Gain ~190,000 honors. InundationAfflicted by effects in order based on lvl: Hit to DEF / HP is lowered on every turn / Attacks restricted / When lvl 4 at end of turn: Will be knocked out (Max: 4 / Lvl lowers based on number of chains when an earth chain burst activates) Inflicts cumulative debuffs based on lvl: InundationAfflicted by effects in order based on lvl: Hit to DEF / HP is lowered on every turn / Attacks restricted / When lvl 4 at end of turn: Will be knocked out (Max: 4 / Lvl lowers based on number of chains when an earth chain burst activates) : 50% DEF DownDEF is lowered Strength: 50%. InundationAfflicted by effects in order based on lvl: Hit to DEF / HP is lowered on every turn / Attacks restricted / When lvl 4 at end of turn: Will be knocked out (Max: 4 / Lvl lowers based on number of chains when an earth chain burst activates) : HP is lowered by 500010% of maximum HP, Cap: 5000 at the end of turn. InundationAfflicted by effects in order based on lvl: Hit to DEF / HP is lowered on every turn / Attacks restricted / When lvl 4 at end of turn: Will be knocked out (Max: 4 / Lvl lowers based on number of chains when an earth chain burst activates) : Can't attack. (Can still use skills) InundationAfflicted by effects in order based on lvl: Hit to DEF / HP is lowered on every turn / Attacks restricted / When lvl 4 at end of turn: Will be knocked out (Max: 4 / Lvl lowers based on number of chains when an earth chain burst activates) : Lethal HitInstant death for the victim. at the end of turn. 90% Trigger Casts Reflective Depths. 60% Trigger Casts Reflective Depths.
Phase 2	Leviathan Mare Omega	200	404,640,000 (40%)	◇◇◇◇	Yes
	87,000 ATKEstimated damage taken from a 87,000 ATK foe DEF Element Base ATK DownATK is lowered 25% ATK DownATK is lowered 50% 10 Advantage 6,525 4,894 3,263 10 Neutral 8,700 6,525 4,350 10 Disadvantage 13,050 9,788 6,525 12 DEFEstimated damage dealt to a 12 DEF foe Element BaseRelative to damage dealt to neutral element foes in Party setup DEF DownDEF is lowered 25% DEF DownDEF is lowered 50% Advantage 125% 166.67% 250% Neutral 83.33% 111.11% 166.67% Disadvantage 62.5% 83.33% 125% 0%All earth damage taken reduced by 0%.0%All plain damage taken reduced by 0%.
	Special Attacks		Triggers and Notes
	Reflective Depths TR 30% 300% Water damage to all allies. Inflicts 50% Charge Bar Gain LoweredCharge bar gain is lowered Strength: 50%Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining.. Gains Reflective DepthsDebuff resistance is boosted / Cuts and reflects DMG (Can't be removed / Ends upon the chain burst Diastrofism) Strength: 50% Repel (10 times per turn / Cap: 2000)Duration: 4.5 turnsLocal status effectApplied during the attack phase. On the next turn, it'll have 4 turns remaining. and UpliftedCharge diamonds fill more quickly Strength: 1 Charge Diamond per turnDuration: 4.5Local status effect. Devoratio Omnia N OD TR 25% 10% 10-hits, 800% Water damage to random allies. DMG Cut NullifiedNullifies 'all elemental DMG cut' (Can't be removed) Damage ignores "All-element DMG Cut". Raises InundationAfflicted by effects in order based on lvl: Hit to DEF / HP is lowered on every turn / Attacks restricted / When lvl 4 at end of turn: Will be knocked out (Max: 4 / Lvl lowers based on number of chains when an earth chain burst activates) Duration: Indefinite lvl by 3. Inflicts 80% Sharp DEF DownDEF is sharply lowered Strength: 80%Duration: 2.5 turnsApplied during the attack phase. On the next turn, it'll have 2 turns remaining.. Removes all buffs. Chance to gain Double StrikeAttacks twice each turn (Can't be removed) Duration: 1 turn based on Mare EssentiaBased on lvl: ATK is boosted / DMG taken is cut / Chance to remove 2 buffs upon normal attacks (Can't be removed / Max: 10 / After allies use charge attacks 3 times or DMG skills 6 times within 1 turn: Lvl is lowered by 1 / Usage count is reset for that type) lvl.		40% Trigger Mode Bar is reset. 30% Trigger Casts Reflective Depths. 25% Trigger Casts Devoratio Omnia. 10% Trigger Casts Devoratio Omnia.
N - Normal, OD - Overdrive, TR - Trigger

Rewards
First clear: Crystal ×50
Host: Prestige Pendant ×50		Join: Prestige Pendant ×35	Crew: Prestige Pendant ×35

Chest 1	Chest 2	Chest 3
100%	100%	100%
100.0100.00% ±0.00% chance to be selected when chest drops. Based on 946 drops from 946 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Immortal Fragment	29.929.94% ±2.15% chance to be selected when chest drops. Based on 368 drops from 1229 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Mare Anima 15.615.62% ±1.70% chance to be selected when chest drops. Based on 192 drops from 1229 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Indicus Centrum 16.016.03% ±1.72% chance to be selected when chest drops. Based on 197 drops from 1229 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Water Urn 33.433.44% ±2.21% chance to be selected when chest drops. Based on 411 drops from 1229 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  True Water Anima  5.04.96% ±1.02% chance to be selected when chest drops. Based on 61 drops from 1229 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Water Quartz ×3	15.615.61% ±1.70% chance to be selected when chest drops. Based on 192 drops from 1230 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Mare Anima 10.410.41% ±1.43% chance to be selected when chest drops. Based on 128 drops from 1230 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Mare Anima ×2 31.731.71% ±2.18% chance to be selected when chest drops. Based on 390 drops from 1230 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Leviathan Omega Anima  4.84.80% ±1.00% chance to be selected when chest drops. Based on 59 drops from 1230 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Leviathan Omega Anima ×2  5.25.20% ±1.04% chance to be selected when chest drops. Based on 64 drops from 1230 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Omega Fragment  4.84.80% ±1.00% chance to be selected when chest drops. Based on 59 drops from 1230 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Genesis Fragment 27.627.56% ±2.10% chance to be selected when chest drops. Based on 339 drops from 1230 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Fanned Fin
Chest 4	Chest 5	Blue
100%	50?%	9.72% (~1,249,895)9.72% of total honor is required to guarantee a blue chest. Based on HP alone a minimum 1,055,495 honor is required to guarantee a blue chest. Typically 1,249,895 honor should be enough to guarantee a blue chest under normal circumstances.
Mare Anima	Archangel itemRandom SR Archangel Weapon or Queen ×4  1.41.38% ±0.42% chance to be selected when chest drops. Based on 29 drops from 2106 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Leviathan Omega  5.65.56% ±0.82% chance to be selected when chest drops. Based on 117 drops from 2106 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Omega Weapons Leviathan Gaze Omega Leviathan Spear Omega Leviathan Scepter Omega Leviathan Bow Omega  0.00.05% ±0.08% chance to be selected when chest drops. Based on 1 drops from 2106 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Eternity Sand	2.92.89% ±0.56% chance to be selected when chest drops. Based on 70 drops from 2418 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Rebirth Weapons Leviathan Gaze Mare Leviathan Cranium Mare Leviathan Blade Mare 55.555.54% ±1.66% chance to be selected when chest drops. Based on 1343 drops from 2418 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Mare Anima  1.01.03% ±0.34% chance to be selected when chest drops. Based on 25 drops from 2418 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Mare Omega Anima  7.47.44% ±0.88% chance to be selected when chest drops. Based on 180 drops from 2418 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Supreme Merit  3.33.35% ±0.60% chance to be selected when chest drops. Based on 81 drops from 2418 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Legendary Merit 26.626.63% ±1.48% chance to be selected when chest drops. Based on 644 drops from 2418 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  True Water Anima  2.42.40% ±0.51% chance to be selected when chest drops. Based on 58 drops from 2418 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Weapon Plus Mark  0.60.62% ±0.26% chance to be selected when chest drops. Based on 15 drops from 2418 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Weapon Plus Mark ×2  0.10.08% ±0.10% chance to be selected when chest drops. Based on 2 drops from 2418 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Weapon Plus Mark ×3
Host	MVP	Conditional
5.65.61% ±1.69% chance to be selected when chest drops. Based on 28 drops from 499 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Rebirth Weapons Leviathan Gaze Mare Leviathan Cranium Mare Leviathan Blade Mare 51.351.30% ±3.68% chance to be selected when chest drops. Based on 256 drops from 499 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Mare Anima 13.613.63% ±2.53% chance to be selected when chest drops. Based on 68 drops from 499 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Mare Omega Anima  2.02.00% ±1.03% chance to be selected when chest drops. Based on 10 drops from 499 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Legendary Merit 21.221.24% ±3.01% chance to be selected when chest drops. Based on 106 drops from 499 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  True Water Anima ×2  3.63.61% ±1.37% chance to be selected when chest drops. Based on 18 drops from 499 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Weapon Plus Mark  1.61.60% ±0.92% chance to be selected when chest drops. Based on 8 drops from 499 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Weapon Plus Mark ×2  1.01.00% ±0.73% chance to be selected when chest drops. Based on 5 drops from 499 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Weapon Plus Mark ×3	3.23.20% ±0.84% chance to be selected when chest drops. Based on 38 drops from 1187 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Rebirth Weapons Leviathan Gaze Mare Leviathan Cranium Mare Leviathan Blade Mare 38.138.08% ±2.32% chance to be selected when chest drops. Based on 452 drops from 1187 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Mare Anima  1.21.18% ±0.52% chance to be selected when chest drops. Based on 14 drops from 1187 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Mare Omega Anima  8.18.09% ±1.30% chance to be selected when chest drops. Based on 96 drops from 1187 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Supreme Merit  2.92.95% ±0.81% chance to be selected when chest drops. Based on 35 drops from 1187 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Legendary Merit  9.39.27% ±1.38% chance to be selected when chest drops. Based on 110 drops from 1187 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Soul Balm 29.829.82% ±2.18% chance to be selected when chest drops. Based on 354 drops from 1187 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  True Water Anima  4.54.47% ±0.99% chance to be selected when chest drops. Based on 53 drops from 1187 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Weapon Plus Mark  2.42.36% ±0.72% chance to be selected when chest drops. Based on 28 drops from 1187 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Weapon Plus Mark ×2  0.60.59% ±0.37% chance to be selected when chest drops. Based on 7 drops from 1187 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Weapon Plus Mark ×3	2.52.53% ±0.50% chance to be selected when chest drops. Based on 68 drops from 2692 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Rebirth Weapons Leviathan Gaze Mare Leviathan Cranium Mare Leviathan Blade Mare 55.255.24% ±1.58% chance to be selected when chest drops. Based on 1487 drops from 2692 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Mare Anima  0.60.63% ±0.25% chance to be selected when chest drops. Based on 17 drops from 2692 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Mare Omega Anima  8.48.40% ±0.88% chance to be selected when chest drops. Based on 226 drops from 2692 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Supreme Merit  3.63.57% ±0.59% chance to be selected when chest drops. Based on 96 drops from 2692 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Legendary Merit 27.227.15% ±1.41% chance to be selected when chest drops. Based on 731 drops from 2692 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  True Water Anima  1.91.93% ±0.44% chance to be selected when chest drops. Based on 52 drops from 2692 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Weapon Plus Mark  0.60.56% ±0.24% chance to be selected when chest drops. Based on 15 drops from 2692 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Weapon Plus Mark ×2  0.00.00% ±0.00% chance to be selected when chest drops. Based on 0 drops from 2692 chests. Confidence intervals are assuming an approximately normal distribution at 90% confidence.  Weapon Plus Mark ×3
This raid is eligible for bonus loot chests during Extra Drops events. See Purple Chests for additional information.
Drop rates from the otokuro2 spreadsheets. Please check the source spreadsheets for up to date numbers. Drop table last updated: 2026-07-03, all stated drop rates are estimates. The game changes over time. If the drop tables become incorrect please notify the wiki staff.