Damage done by attacks to the Pokémon that Metal Energy is attached to is reduced by 10 (after applying Weakness and Resistance). Ignore this effect if the Pokémon that Metal Energy is attached to isn't Metal. Metal Energy provides Metal Energy. (Doesn't count as a basic Energy card.)
Metal Energy #013/20 is a English Pokémon TCG card from the WC Deck 2008 (Intimidation) set, printed at Uncommon rarity.
Illustration by Takumi Akabane.
WC Deck 2008 (Intimidation) was released in 2008 as part of the World Championships series.
The WC Deck 2008 (Intimidation) set page lists every other card in the same expansion in card-number order.