Entei · Aquapolis (AQ) #H8

Poké-BODY ⇢ Pure Body
To attach a {R} Energy card from your hand to Entei, you must discard an Energy card attached to Entei. (Attach the {R} Energy, and then discard an Energy from Entei.)

{R}{C}{C} → Burning Fang : 40
You may flip a coin. If heads, discard a {R} Energy card attached to Entei and the Defending Pokémon is now Burned.