Psywave10×

Does 10 damage times the number of Energy cards attached to the Defending Pokemon.

Devolution Beam

Choose an evolved Pokemon (your own or your opponent's). Return the highest Stage Evolution card on that Pokemon to its player's hand. That Pokemon is no longer Asleep, Confused, Paralyzed, or Poisoned, or anything else that might be the result of an attack (just as if you had evolved it).