Walrein LV. 59
Stage 2 Pokémon
Once during your turn (before your attack), when you play Walrein from your hand to evolve 1 of your Pokémon, you may attach as many Water Energy cards from your hand to Walrein as you like.
Discard an Energy card attached to Walrein and then discard an Energy card attached to the Defending Pokémon.