Revenge Fang
If you have less Benched Pokémon than your opponent, each of Houndoom's attacks does 40 more damage to the Active Pokémon (before applying Weakness and Resistance).
Burning Sensation
If the Defending Pokémon already has any damage counters on it, the Defending Pokémon is now Burned.
20
Bright Flame
Flip a coin. If tails, discard 2 Energy attached to Houndoom.