Kingdra

It lives in caves on the seafloor and creates giant whirlpools every time it moves.

Dragon Vortex (20): Does 20 damage times the number of Water Energy cards and Lightning Energy cards in your discard pile. Then, shuffle all of those cards back into your deck.

Tri Bullet: This attack does 30 damage to 3 of your opponent's Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)