Whenever an attack from the Pokémon that Strength Charm is attached to does damage to the Active Pokémon (before applying Weakness and Resistance), the attack does 10 more damage. Discard Strength Charm at the end of the turn in which this Pokémon attacks.
Attach Strength Charm to 1 of your Pokémon (excluding Pokémon-ex and Pokémon that has Dark or an owner in its name) that doesn't have a Pokémon Tool attached to it. If the Pokémon Energy Root is attached to is Pokémon-ex or has Dark or an owner in its name, discard Energy Root.