When a Pokémon with this Ability is hit by a move that makes contact, there is a 30% chance that the attacking Pokémon will become paralyzed. This can affect Ground-type Pokémon.
If a Pokémon with this Ability is hit by a multi-strike move that makes contact, each hit has an independent chance to activate this Ability.
Outside of battle
If a Pokémon with Static is leading the party, then there is a 50% chance the game will force an encounter with an Electric-type Pokémon, if one is possible. Although this appears to not be working.