Mega Starmie ex

This attack also does 50 damage to 1 of your opponent's Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)

This attack's damage isn't affected by Weakness or Resistance, or by any effects on your opponent's Active Pokémon.

Pokémon ex rule: When your Pokémon ex is Knocked Out, your opponent takes 2 Prize cards.

Mega Evolution ex Rule: When your Mega Evolution Pokémon ex is Knocked Out, your opponent takes 3 Prize cards.