Dusknoir (Burning Shadows 53/147)
0
Ability Dark Invitation

Once during your turn (before your attack), you may have your opponent reveal their hand. Put a Basic Pokémon you find there onto your opponent's Bench, and put 3 damage counters on that Pokémon.

Psychic Colorless Colorless
Mind Jack
30+

This attack does 30 more damage for each of your opponent's Benched Pokémon.