When you play Dark Crobat from your hand, you may choose 1 of your opponent's Pokémon. This power does 20 damage to that Pokémon. (Don't apply Weakness and Resistance.)

Dark Drain

Flip a coin for each of your opponent's Pokémon. For each heads, this attack does 10 damage to that Pokémon. Don't apply Weakness and Resistance. Remove a number of damage counters from Dark Crobat equal to the damage dealt. If Dark Crobat has fewer damage counters than that, remove all of them.