Dangerous Energy (168/171) [SM: The Best of XY]

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