My cousin and I are on the fence when it comes to the Energy Absorption attack for Mewtwo- EX - XY- Evolutions card. It’s reads, “Energy Absorption- Attach an Energy card from your discard pile to this Pokémon.” To me this means that I can attach a special energy or basic energy from my discard pile as it does not specify one or the other, it simply states “an energy card.” My cousin believes that I can only attach a basic energy card from my discard pile as it does not specify a special energy in the text. Your responses and help on this matter would be greatly appreciated!