M Gardevoir EX 79/114 - XY Steam Siege Holofoil

Discard as many of your Benched Pokémon as you like. This attack does 10 more damage for each Benched Pokémon you discarded in this way.

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.