The Defending Pokémon can't retreat until the end of your opponent's next turn.Flip a coin. If heads, choose 1 of your opponent's Pokémon. This attack does 50 damage to that Pokémon. This attack's damage isn't affected by Weakness or Resistance.
Does 20 damage plus 10 more damage for each Energy attached to Seadra but not used to pay for this attack's Energy cost. You can't add more than 20 damage in this way.Choose 1 of your opponent's Pokémon. This attack does 30 damage to that Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)
As long as Shelgon has any basic Energy cards attached to it, damage done to Shelgon by an opponent's attack is reduced by 10 (after applying Weakness and Resistance).