Marnie's Grimmsnarl ex (ASC #287)

Ability • Punk Up

When you play this Pokémon from your hand to evolve 1 of your Pokémon during your turn, you may search your deck for up to 5 Basic Darkness Energy cards and attach them to your Marnie's Pokémon in any way you like. Then, shuffle your deck.

This attack also does 30 damage to 1 of your opponent's Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)