Neo-Spacian Aqua Dolphin
① Once per turn: You can discard 1 card; look at your opponent's hand, and choose 1 monster in it (if any).
● If you control a monster with greater or equal ATK to it, destroy that chosen card and inflict 500 damage to your opponent.
● If you don't control a monster with greater or equal ATK to it, you take 500 damage.
● If the chosen monster has ? ATK, it won't be destroyed, and you will take 500 damage.
● If they don't have a monster in their hand, neither player takes damage.