[PKM] M Steelix EX (109/114) [XY: Steam Siege]

This attack does 10 damage to each of your opponent's Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)

Mega Evolution rule: When 1 of your Pokémon becomes a Mega Evolution Pokémon, your turn ends.

Pokémon-EX rule: When a Pokémon-EX has been Knocked Out, your opponent takes 2 Prize cards.