On Weakness Attack, grants one stack of [Mark of Weakness] that lasts for 2 Rounds. Additionally, on successful attack, grants the target an additional stack of [Mark of Weakness] and increases ally ACC by 40%. [Mark of Weakness]: Reduces all DEF of the target by 320 and further reduces Pierce DEF by an additional 280. Can stack up to 2 times.

[Mark of Weakness] effect's DEF reduction is applied at 2 times the usual value. At the start of the next turn after ending your own turn, if there is an ally within a 3m range who is not in a Stealth or Banish state, gain the [Conceal: Stealth] effect.