Cursed Body (Japanese: のろわれボディCursed Body) is an Ability introduced in Generation V. Five Pokémon have this Ability, all of which are pure or part Ghost-type Pokémon.
Cursed Body has a 30% chance of disabling the opponent's used move when attacked. This works even if the attacker is behind a Substitute and when the user is knocked out, but will not activate if the Pokémon with Cursed Body is behind a Substitute.
When Frillish is hit by the opponent's attack that causes physical contact, Frillish's body becomes surrounded in a dark indigo aura. The aura then is transferred to the opponent's body by the physical contact, and the opponent becomes surrounded by the dark indigo aura instead. The opponent can then no longer use the move that inflicted the physical damage onto Frillish. Sometimes, Frillish's body doesn't become surrounded in a dark indigo aura when the effect is activated.