You need both Entei & Raikou cards in order to play. Once you have both cards, place both on your Bench
Discard a Energy attached to Entei & Raikou
Discard all Energy attached to Entei & Raikou . This attack does 80 damage to each Pokémon that has any PokéPower. (both yours and your opponent's). This attack's damage isn't affected by Weakness and Resistance.