Metal Core Barrier

If this card is attached to 1 of your pokémon, discard it at the end of your opponent' turn. The Metal Pokémon this card is attached to takes -50 damage from attacks from your opponent's Pokémon. Attach Metal Core Barrier 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.