![Darkness Energy (Expedition Base Set 158/165)](https://static.tcgcollector.com/content/images/98/b8/cd/98b8cdde872633125b1e6605b9d11b0733d4726efe5a5d3a815a285e1d972501.jpg)
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If the Pokémon Darkness Energy is attached to does damage with an attack (after applying Weakness and Resistance), the attack does 10 more damage. At the end of every turn, put 1 damage counter on the Pokémon Darkness Energy is attached to, unless it's Darkness or has Dark in its name. Darkness Energy provides Darkness Energy. (Doesn't count as a basic Energy card.)