Cassius (Summer)

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Game Strategy Lore Voice
Summer
[Summer Wanderer]This title is an unofficial, amateur translation.
Cassius
MAX HP 15004★: 1500
MAX ATK 85004★: 8500
BASE DA/TAThis character's base double attack rate and triple attack rate.Characters with support skills that grant guaranteed multiattacks may have very high values. 7% DA / 3% TA
Element
RaceOfficially called "Type" in-game.
Style
SpecialtyThis character gains 20% more ATK from weapons of this type in your grid.  
Exp. BonusExpedition Bonus Type in Auto-Expeditions None
GenderGender is a character attribute used for game mechanics. A character's lore, appearance, and other factors do not affect this attribute. Male
Voice Actor Masaya Matsukaze
How to Recruit
Summer Premium Draw
Recruitment Weapon
Beach House Ramen
ID 3040604000
Char ID 2142
Uncap Limit
NameJP カシウス
TitleJP 夏の漫遊者
Voice ActorJP 松風 雅也
Release Date 2025-07-31
Other Sites GameWithKamigameHuiji Wiki
(Chinese wiki)
GBF Asset LookupGBF Animation Player
A chance seaside encounter brings a young traveler into this former voyager's orbit. Together, they seek an answer that was before them all along. For the voyager is a voyager no longer—simply a man with a happy smile, who calls the skies his home.

Charge Attack
Icon Name Effect
Lunar Phantom 450%Massive Wind damage to a foe.[1]
2-turn cut to Cassius's skill cooldowns.

Skills
Icon Name Cooldown Duration Obtained Effect
Lucent Breach 6 turns
Lvl 55:
5 turns
180 sec /
1 turn
Lvl 1
⇧ Lvl 55This skill is enhanced at level 55.
3-hit, 100% Wind damage to a foe (Damage cap: ~185,000 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
.
Gain 30% Bonus Wind DMGDeals bonus wind DMG for one-foe one-ally attacks
Strength: 30%Duration: 1 turn
.
(From 2nd cast onward:
Also gain Flurry (2-hit)Normal attacks deal 2-hit DMG to random foes
Duration: 1 turn
.
From 3rd cast onward:
Also gain Supplemental DMG (50,000)DMG dealt is supplemented
Strength: 50,000Duration: 1 turn
.)[1]
Incessant Flurry 6 turns
Lvl 75:
5 turns
- Lvl 1
⇧ Lvl 75This skill is enhanced at level 75.
8-hit, 100% Wind damage to random foes (Damage cap: ~68,000 per hit).
Remove 1 buff from all foes.
Restore 20% of Wind allies' HP (Healing cap: 2000) and remove 1 debuff.[1]
Assimilation 18 turns 1 turn Lvl 45
1000% Wind damage to all foes (Damage cap: ~1,160,000).[1]
Gain AssimilationAttacks 2 times each turn / Incessant Flurry activates upon normal attacks (Can't be removed)
Duration: 1 turn
.
End cooldown for other skills.
(Can only be used when Vacation ArtsGains effects in order based on Vacation Arts lvl: Boost to ATK / Boost to DEF / Boost to skill DMG cap / Boost to healing specs / 1-turn reduction to damage skill cooldowns (Max: 5 / Can't be removed)
lvl is at max.)

Support SkillsDoes not work from the backline unless explicitly stated.
Icon Name Obtained Effect
Vacation Arts Lvl 1
No charge bar gain upon normal attacks and guaranteed triple attacks.
Upon normal attacks:
Damage skill cooldowns are cut by 1 turn.
Vacation ArtsGains effects in order based on Vacation Arts lvl: Boost to ATK / Boost to DEF / Boost to skill DMG cap / Boost to healing specs / 1-turn reduction to damage skill cooldowns (Max: 5 / Can't be removed)
Duration: Indefinite
lvl rises by 1 (Max: 5).
(Gain effects in order based on Vacation ArtsGains effects in order based on Vacation Arts lvl: Boost to ATK / Boost to DEF / Boost to skill DMG cap / Boost to healing specs / 1-turn reduction to damage skill cooldowns (Max: 5 / Can't be removed)
lvl:
[1]
1: 30% boost to ATKMultiplier: Perpetuity.
2: 100% boost to DEF.
3: 20% boost to skill damage cap.
4: 20% boost to healing specs.
5: 1-turn reduction to damage skill cooldowns.)
Reflexivity Lvl 1
When a foe uses a special attack: Activate Incessant Flurry8-hit, 100% Wind damage to random foes (Damage cap: ~68,000 per hit).
Remove 1 buff from all foes.
Restore 20% of Wind allies' HP (Healing cap: 2000) and remove 1 debuff.
.

Extended Mastery Perks
Style
  • ATK
    ★☆☆★★☆★★★
    +500+800+1000
  • DEF
    ★☆☆★★☆★★★
    5%8%10%
  • HP
    ★☆☆★★☆★★★
    250500750
  • Wind ATK Up
    ★☆☆★★☆★★★
    5%8%10%
  • Debuff Resistance
    ★☆☆★★☆★★★
    5%8%10%
RaceCalled "Type" in-game.
  • ATK
    ★☆☆★★☆★★★
    +500+800+1000
  • DEF
    ★☆☆★★☆★★★
    5%8%10%
  • HP
    ★☆☆★★☆★★★
    250500750
  • Wind ATK Up
    ★☆☆★★☆★★★
    5%8%10%
  • Charge Attack Damage
    ★☆☆★★☆★★★
    10%15%20%
Individual
  • Skill Damage
    ★☆☆★★☆★★★
    10%15%20%
  • Skill Damage Cap
    ★☆☆★★☆★★★
    5%8%10%
  • Skill Damage Cap
    ★☆☆★★☆★★★
    5%8%10%
  • Healing
    ★☆☆★★☆★★★
    10%15%20%
  • Perk unknown, please help fill it out

Grid Suggestions

Gameplay Notes

Assimilation

  • AssimilationAttacks 2 times each turn / Incessant Flurry activates upon normal attacks (Can't be removed)
    Duration: 1 turn
    grants the following effects:
    • Double Strike effect
    • After normal attacks: Activate Incessant Flurry8-hit, 100% Wind damage to random foes (Damage cap: ~68,000 per hit).
      Remove 1 buff from all foes.
      Restore 20% of Wind allies' HP (Healing cap: 2000) and remove 1 debuff.
      • Activates even if it is on cooldown, and does not put it on cooldown if it's not already.

Vacation Arts

  • Does not gain any charge bar from normal attacks or counters even with Charge Bar Gain UpCharge bar gain is boosted
    or similar effects.
    • Can still gain charge bar from other methods such as Charge Bar +Instantly boosts Charge Bar by
      , 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%.
      , other allies' charge attacks, etc.

Reflexivity

  • Auto-activates the skill Incessant Flurry8-hit, 100% Wind damage to random foes (Damage cap: ~68,000 per hit).
    Remove 1 buff from all foes.
    Restore 20% of Wind allies' HP (Healing cap: 2000) and remove 1 debuff.
    after a foe uses a special attack.
    • Activates even if it is on cooldown, and does not put it on cooldown if it's not already.

Bonus DMG Stacking Information

  • The following is a curated list of how different Bonus DMG sources interact with Cassius (Summer)'s skills. Check Bonus DMG for further information and a comprehensive list.

Uncap Materials

Uncap 1★
Uncap 2★
Uncap 4★

Awakening Materials

Facsimile Compatibility

Icon Skill Copyable?
Lucent Breach No
Incessant Flurry Yes
Assimilation No

Outfits

Parasol and Hakama of Prosperity

A garment carefully woven in the hope that it will bring the wearer greater fortune in the year to come. Accompanied by a historic paper umbrella, the outfit is too valuable for casual wear. Because of this rarity, rumor says that those who see it in use will also share in its good fortune.
Outfit Name Parasol and Hakama of Prosperity
How to Get 2023 New Year Outfit Set
(In-game purchase)
Release Date 2022-12-31
Outfit Shop Date 2023-12-31
Charge Attack New Year's Eclipse
ID 3710196000
Other Sites GBF Asset Lookup GBF Animation Player

References