A Pokémon with this ability will shudder upon being in battle against a Pokémon with any one-hit KO moves and/or super effective moves. In Generation IV, the move is not triggered by Counter, Metal Burst or Mirror Coat, but beginning with Generation V, those three moves are counted as move triggers too.
Pokémon with Anticipation
As a normal ability
|If any of the Pokémon were introduced before the generation that Anticipation was introduced in, then they will not have it as a natural ability until then.|
|Hidden abilities were not introduced until Generation V, so if any of the Pokémon were introduced before that, then they will not have Anticipation as a hidden ability until then.|