When a Pokémon with this ability takes a critical hit, its attack increases to its maximum level.
In Generation IV, Anger Point would activate with Substitute in affect, however, beginning with Generation V, this was changed to where Substitute would keep Anger Point from activating.
Pokémon with Anger Point
|If any of the following Pokémon were introduced before the generation that Anger Point was introduced in, then it won't apply to them until then.|
As a Hidden Ability
|If any of the following Pokémon were introduced before Generation V, then they will not have Anger Point as their hidden ability until then.|