To attach a Fire Energy card from your hand to Entei, you must discard an Energy card attached to Entei. (Attach the Fire Energy, and then discard an Energy from Entei.)
Attacks
[Fire, Colorless, Colorless]Burning Fang
40
Energy Cost: 3
You may flip a coin. If heads, discard a Fire Energy card attached to Entei and the Defending Pokémon is now Burned.