Misty's Poliwhirl

Rapids (20): If the Defending Pokémon has any Energy cards attached to it, flip a coin. If heads, choose 1 of those Energy cards and discard it.

Water Punch (30+): Flip a number of coins equal to the number of Water Energy attached to Misty's Poliwhirl. This attack does 30 damage plus 10 damage for each heads.