Not Implemented: This card is not available to play on TCG ONE.
Dark Flame20
Discard 1 Energy card attached to Houndoom or this attack does nothing. If there are any Energy cards in your discard pile, attach 1 of them to Houndoom.
Black Fang30+
Flip a number of coins equal to the number of Energy attached to Houndoom. This attack does 30 damage plus 10 more damage for each heads.