Type	Icon	Name	SP	Required	Description 【Switch】
A		Obsession	300	—	At start of combat, if unit's HP ≥ 25%, grants Atk/Spd/Def/Res+9 to unit during combat, unit makes a guaranteed follow-up attack, foe cannot make a follow-up attack, and also, when unit performs a follow-up attack, neutralizes "reduces damage by X%" effects from foe's non-Special skills (excluding area-of-effect Specials). At start of combat, if unit's HP ≥ 25% and if decreasing the Spd difference necessary to make a follow-up attack by 25 would allow unit to trigger a follow-up attack (excluding guaranteed or prevented follow-ups), triggers【Potent Follow X%】during combat (if unit cannot perform follow-up and attack twice, X = 80; otherwise, X = 40).	At start of combat, if unit's HP ≥ 25%, grants Atk/Spd/Def/Res+9 to unit during combat, unit makes a guaranteed follow-up attack, foe cannot make a follow-up attack, and also, when unit performs a follow-up attack, neutralizes "reduces damage by X%" effects from foe's non-Special skills (excluding area-of-effect Specials). At start of combat, if unit's HP ≥ 25% and if decreasing the Spd difference necessary to make a follow-up attack by 25 would allow unit to trigger a follow-up attack (excluding guaranteed or prevented follow-ups), triggers【Potent Follow X%】during combat (if unit cannot perform follow-up and attack twice, X = 80; otherwise, X = 40). 【Potent Follow X%】 Triggers an additional follow-up attack immediately after unit's standard follow-up attack and deals damage = X% of unit's normal attack damage (if unit cannot make a follow-up attack, this effect triggers when the standard follow-up attack would occur; this effect is treated like a follow-up attack, so effects like "reduce damage by X%" still apply, but this effect is not affected by effects that prevent follow-ups or "attacks twice" effects; only highest value applied; does not stack).
This skill can only be equipped by its original unit.

* Unused restrictions: No restrictions.

Effects

Effects	Targets	Conditions
Combat effects
Atk/Spd/Def/Res+9	Unit	Unit's HP ≥ 25% at start of combat
Guaranteed follow-up
Cannot follow-up	Foe
Neutralizes "Reduces damage by X%" per  Unit's follow-up attacks
【Potent Follow X%】 X = 80% if  Unit can't follow-up & attack twice; else, X = 40%	Unit	Unit's HP ≥ 25% at start of combat &  Unit's Spd ≥  Foe's Spd-20

Notes

• The stat boost that can be applied during combat by Obsession is considered a temporary buff.
• As a general rule, if a unit is both prevented from making, and guaranteed to make a follow-up attack, the effects cancel out, and the Spd difference decides instead (including effects that alter the Spd difference such as  Frozen).
• A foe with effects such as  Phys. Null Follow or  Null Follow-Up will neutralize the guaranteed follow-up attack granted by Obsession.
• Obsession can prevent the foe from making a standard follow-up attack.
  • As a general rule, if a unit is both prevented from making, and guaranteed to make a standard follow-up attack, the effects cancel out, and the Spd difference is used (including effects that alter the Spd difference such as  Frozen).
  • Obsession will not prevent a unit with a "unit attacks twice" effect from performing the 2 consecutive attacks, but the the unit will not be able to perform a standard follow-up attack.
  • Obsession will not prevent the additional follow-up attack of Potent Follow effects.
  • Effects such as  Mag. Null Follow or  Null Follow-Up will neutralize the follow-up preventing effect of Obsession.
• Obsession will neutralize non-Special "reduces damage by X%" effects from Specials such as  Vital Astra.
  • Obsession will not neutralize Special "reduces damage by X%" effects or flat damage-reduction effects such as  Archrival or  Pair Up 4.
  • For more information, see Damage calculation.

• 【Potent Follow X%】 allows the user to perform an additional follow-up attack immediately after the standard follow-up attack (or in the place of the standard follow-up if the unit cannot perform one).
  • Effects that prevent follow-up attacks such as  Weaving Fighter or  Foe Cannot Follow-Up will not prevent the additional follow-up attack granted by 【Potent Follow X%】.
  • "Unit attacks twice" effects such as  Brave Sword+ or  Triangle Attack will not double the additional follow-up attack granted by 【Potent Follow X%】.
  • A foe with effects such as  Phys. Null Follow or  Null Follow-Up will not neutralize the additional follow-up attack granted by 【Potent Follow X%】.
• The damage calculating effect of 【Potent Follow X%】 is calculated based on the unit's normal attack damage before being reduced by the foe's damage-reduction effects.
  • Damage calculating 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.

List of owners

Unit	Skill chain
Ivy: Snow Queen	Obsession 5

In other languages

Language	Name
Japanese	執着
German	Obsession
Spanish (Europe)	Obsesión
Spanish (Latin America)	Obsesión
French	Obsession
Italian	Ossessione
Traditional Chinese (Taiwan)	執著
Portuguese	Obsessão

See also