Metal Energy (Expedition Base Set 159)

Rules

Damage done by attacks to the Pokémon Metal Energy is attached to is reduced by 10 (after applying Weakness and Resistance). If the Pokémon Metal Energy is attached to isn't Metal, whenever it damages a Pokémon by an attack, reduce that damage by 10 (after applying Weakness and Resistance). Metal Energy provides Metal Energy. (Doesn't count as a basic Energy card.)