This card can only be attached to Darkness Pokemon. This card provides Darkness Energy only while this card is attached to a Darkness Pokemon. Whenever the Darkness Pokemon this card is attached to is your Active Pokemon and is damaged by an attack from your opponent's Pokemon-EX (even if that Pokemon is Knocked Out), put 2 damage counters on the Attacking Pokemon-EX. (If this card is attached to anything other than a Darkness Pokemon, discard this card.)