This card is amazing. It DOES NOT NEED Darkrai. Trust me! I use 1 copy of this in my TDK deck. It works PERFECTLY in that deck! 1 Prism, 1 Colress Machine to put on a Plasma Energy and it's all ready to attack! This is the very card that I used to put a stop to a lady at my store who was abusing her Mewtwo with Plasma Badge/Deoxys Deck. She knocked out my Kyurem, so I put down this bad boy. Mewtwo already had a fair bit of Damage Counters on it and we were down to my last move in the Tourney when they called "time" The prize count was even. I Planted a Prism and Colress Machined a Plasma Energy onto this guy and then with her nice full bench and my few Deoxys, I knocked Mewtwo into oblivion! This card is insanely good! Your opponent's are about 99% of the time gonna have a full bench. So you can plant this bad boy into your active position and then count your opponent's nice juicy full bench. And go Mind Jack 20, 40, 60, 80, 100, 120 + 30 more for 3 Deoxys on your own bench, so 150. Have your Bank our and drop a laser 150 + 30 more. 180 massive damage for only 2 Energy that you quickly charged up! So see ya EXs!
People just go, oh yeah, this card is great in Darkrai. It's great in other decks too. It's a Plasma Pokémon, so it takes advantage of the Plasma Engine. So it benefits from Colress Machine and Deoxys!
The only downfall to this card is its HP and maybe it's weakness being fighting. But that's what Kyurem is for. Taking care of those pesky Landorus and at the same time, win the war of prizes, considering Landorus being KO'd is 2 prizes, vs. Kyurem is only 1. But on the plus side of things, this card is a 1 prize KO too. So this card's got a LOT going for it!
10/10 for how awesome and useful this amazing card is!