Flip a coin. If heads, search your discard pile for 2 Fire Energy cards and attach them to Charizard (1 if there is only 1).
You may discard a Fire Energy card attached to Charizard. If you do, choose 1 of your opponent's Benched Pokémon and do 30 damage to that Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)