Houndoom 8

Discard 1 Fire Energy card attached to Houndoom or this attack does nothing. If there are any Darkness Energy cards in your discard pile, attach 1 of them to Houndoom. Damage: 20

Flip a number of coins equal to the number of Darkness Energy attached to Houndoom. This attack does 30 damage plus 10 more damage for each heads. Damage: 30+