Generation V
Healer
May heal an ally’s status conditions.
Detailed Effect
Friendly Pokémon next to this Pokémon in double and triple battles each have a 30% chance of being cured of any major status ailment after each turn.
Pokémon With Healer
12 canonical Pokémon forms can have this Ability.

Audino
Alomomola 
Spritzee
Aromatisse
Hatenna
Hattrem
Hatterene
Mega Audino
Hatterene Gmax
Chansey
Bellossom
Blissey