[D] Dark Fang (20)
Choose 1 card from your opponent's hand without looking and discard it.

[1R] Black Fire (40+)
You may discard a Fire or Darkness Energy attached to Houndoom. If you discard a Fire Energy, the Defending Pokémon is now Burned. If you discard a Darkness Energy, this attack does 40 damage plus 30 more damage.