All buffs and debuffs

Debuff

Decrease ATK

Decreases the Champion’s Battle ATK by 25% or 50%.
What the game's own status effects screen says

In the game data this effect appears as DecreaseAttack25, DecreaseAttack50.

Champions that apply it

165 champions have a skill that applies Decrease ATK, according to the effect lines in the game data. This lists who applies it, not how reliably: chance, duration and resistance are on each champion's page.

The description is the game's own text. It has not been tested in battle here, and the game's wording can be loose (for example about numbers that differ between versions of an effect). See Data quality for what has and has not been checked. Found a mistake? Use "Report a problem" at the bottom of the page.