Goodra

It gets picked on because it's meek. But then, whoever teased it gets to feel the full force of its horns and a good swatting from its thick tail.

Ability — Hydration: Whenever you attach a Water Energy card from your hand to this Pokémon, heal 20 damage from it.

Soaking Horn (80+): If this Pokémon was healed during this turn, this attack does 80 more damage.