Entei (Aquapolis 10/147)
Poké-BODY Pure Body

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.)

Fire Colorless Colorless
Burning Fang

You may flip a coin. If heads, discard a Fire Energy card attached to Entei and the Defending Pokémon is now Burned.