Giratina

Whenever your opponent's Pokémon tries to attack, your opponent discards 1 card from his or her hand. (If your opponent can't discard 1 card, your opponent's Pokémon can't attack.) You can't use more than 1 Invisible Tentacles Poké-Body each turn.

This attack does 30 damage to each of your opponent's Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.) If any of your opponent's Pokémon would be Knocked Out by damage from this attack, put that Pokémon and all cards attached to it in the Lost Zone instead of discarding it.