Blissey (Prime) (106/123) [HeartGold SoulSilver] Holofoil - Ultra Rare

Once during your turn, when you play Blissey from your hand to evolve 1 of your Pokémon, you may remove all damage counters from all of your Pokémon. If you do, discard all Energy attached to those Pokémon that had any damage counters on them.