It is an ability. The chance that an attacks secondary effect will activate doubles. This means Charge Beam will raise Sp. Attack every time or that Shadow Ball now has a 40% chance to lower Sp. Def, for example.
How to change your username How to add a user avatar Why was my post hidden? Question etiquette Flags vs Downvotes Anime FAQ Official PokemonDb League
Type a Pokemon name, type, move or ability to see instant results.