Name	Cooldown	Description	SP	Required
Comet	5	When Special triggers, boosts damage dealt by 200%. At start of turn, grants Special cooldown count-1 to unit. Reduces damage from foe's first attack by 40% during combat ("first attack" normally means only the first strike; for effects that grant "unit attacks twice," it means the first and second strikes).	500	Astra
Cannot use:

Effects

Effects	Targets	Conditions
Map effects
Special cooldown count-1	Unit	At start of turn
Combat effects
Boosts damage by 200%	Unit	Special triggers
Reduces damage by 40% from  Foe's first attack (including second attacks)		—

Notes

• The Special damage boosting effect of Comet can be reduced by damage-reduction effects such as  Archrival,  A/S Rival Break, and  Dodge.
  • Damage boosting effects stack additively, similar to flat damage-reduction effects and interactions related to the weapon-triangle, such as  Triangle Adept and the weapon-triangle advantage boost.
  • A foe equipped with Invincibility Seals will neutralize all sources of damage except from Røkkr area-of-effect Specials and the minimum 1 damage from Umbra Burst weapons.
  • A foe using attack damage preventing effects can neutralize damage dealt from the foe's own attacks and the unit's attacks (Units with Umbra Burst weapons will take and deal the minimum 1 damage).
  • For more information, see Damage calculation.
• Comet's cooldown count changing effect will not trigger if the unit is inflicted with  False Start, unless  False Start is removed by a skill such as  Dream Deliverer+.
• Cooldown count changes from skills that activate at the same time as Comet (at start of turn) are not considered in Comet's conditions.^[1] Skills such as  Infantry Pulse 4,  Buffer 4, and  Odd Pulse Tie 3 will have their effects stack.

• The Special "reduces damage by X%" effect is calculated after offensive Specials and damage boosting effects such as  Arcane Thorn and  Change of Fate.
  • If an effect such as  Miracle or  Roy: Of Binding's boosted Special effect can trigger, the damage-reduction effect will not trigger and the user will still survive with only 1 HP.
  • Umbra Burst weapons will always deal a minimum of 1 damage even if the foe uses attack damage preventing effects, Invincibility Seals, or damage reduction effects.
  • "Reduces damage by X%" effects stack multiplicatively, unlike interactions related to the weapon-triangle, such as  Triangle Adept and the weapon-triangle advantage boost.
    • For example, if the damage-reduction effects from both  Dodge and  Archrival trigger, the maximum total damage-reduction is 64% instead of 80%, since the two skills reduce the damage to (1 − 40%) × (1 − 40%) = 36% of the original damage.
  • Special "reduces damage by X%" effects cannot be neutralized or reduced only during combat by effects such as  Share Spoils+ or  Halves non-Special damage reduction.
  • For more information, see Damage calculation.

List of owners

Unit	Skill chain
Ash: Divergent Brides	Night Sky 5	Astra 5	Comet 5
Canis: Ill Portent	Night Sky 5	Astra 5	Comet 5
Freyja: Parallel Hearts	Night Sky 5	Astra 5	Comet 5
Lute: Limitless Curiosity	Night Sky 5	Astra 5	Comet 5
Lyon: Twilight Amends	Night Sky 5	Astra 5	Comet 5
Shez: Covert Mercenary	Night Sky 5	Astra 5	Comet 5

Availability

Summoning events

Start	End	Event	Skill
2025-10-07	2025-11-06	Altered Future	Comet
2025-11-06	2025-12-05	Ninja of Time	Comet
2025-12-18	2026-01-01	Focus: Double Special Heroes	Comet
2026-01-06	2026-01-29	Rearmed L'Arachel & Aided Lute	Comet
2026-02-02	2026-03-06	Special Hero Summon (Year 9)	Comet
2026-02-11	2026-02-20	9th Anniv. "12 Luminaries" 2	Comet
2026-02-20	2026-03-01	9th Anniv. "12 Luminaries" 3	Comet
2026-02-23	2026-03-30	Double AHR: Top Eight	Comet
2026-04-21	2026-05-05	Focus: Double Special Heroes	Comet
2026-04-30	2026-05-18	Leg. Lyon & Myth. Sombron	Comet
2026-05-07	2026-06-05	Rearmed Canis & Rearmed Tibarn	Comet
2026-05-18	2026-06-18	First Festival	Comet

Distributed units

• This skill is not available on any distributed units.

Combat Manuals

Start	End	Hero	Currency
2026-03-05T07:00:00Z		Freyja: Parallel Hearts	Divine Code: Part 7

In other languages

Language	Name
Japanese	彗星
German	Komet
Spanish (Europe)	Cometa
Spanish (Latin America)	Cometa
French	Comète
Italian	Cometa
Traditional Chinese (Taiwan)	彗星
Portuguese	Cometa

References

See also

• Star Specials
• Pulse Passives