From Pixelmon Wiki
Poison Heal is an Ability that makes the Pokémon heal ⅛ of its maximum HP every turn if it is poisoned or badly poisoned. The damage that would normally be taken from the poison statuses is nullified.
|Pokémon||Type||Ability 1||Ability 2||Hidden Ability|
|Shroomish||Grass||Effect Spore||Poison Heal||Quick Feet|
|Breloom||Grass||Fighting||Effect Spore||Poison Heal||Technician|
|Gliscor||Ground||Flying||Hyper Cutter||Sand Veil||Poison Heal|