Hey PokeBeach, I've been playing Pokemon TCG for a while now. I play unlimited at a local card shop every once in a while. About a year ago, I left and I've recently gotten back into the game. I used a variant of this deck and always did pretty good, but I'm not too sure about it anymore. Hopefully you guys can help me out a bit? 
The point of the deck is to get out Darkrai Lv. X and get a ton of energies on him. I don't have many new cards (as a matter of fact, the last pack I opened was Arceus) and I may or may not have any other cards that you recommend. I'm mainly just looking for recommendations. Thanks!
Pokemon
2 Darkrai GE 3
2 Darkrai Lv. X GE
1 Cresselia GE
1 Cresselia MD
1 Cresselia Lv. X GE
1 Murkrow SW
2 Murkrow MT
2 Honchkrow MT
1 Honchkrow Lv. X SW
3 Gastly SF
2 Haunter DP
1 Gengar SF
4 Sableye SF
Trainers
1 Great Ball SF
2 Premier Ball (different sets but same effect)
1 Rare Candy GE
1 Level Max PL (I know I want to ditch this card)
1 Focus Band Neo Genesis
1 Leftovers GE
2 Bebe's Search MT
1 Roseanne's Research SW
1 Celio's Network FRLG
1 Moonlight Stadium GE
1 Broken Time-Space PL
Energy
8 Dark Energy
4 Special Dark Energy
12 Psychic Energy
Total: 60
The point of the deck is to get out Darkrai Lv. X and get a ton of energies on him. I don't have many new cards (as a matter of fact, the last pack I opened was Arceus) and I may or may not have any other cards that you recommend. I'm mainly just looking for recommendations. Thanks!
Pokemon
2 Darkrai GE 3
2 Darkrai Lv. X GE
1 Cresselia GE
1 Cresselia MD
1 Cresselia Lv. X GE
1 Murkrow SW
2 Murkrow MT
2 Honchkrow MT
1 Honchkrow Lv. X SW
3 Gastly SF
2 Haunter DP
1 Gengar SF
4 Sableye SF
Trainers
1 Great Ball SF
2 Premier Ball (different sets but same effect)
1 Rare Candy GE
1 Level Max PL (I know I want to ditch this card)
1 Focus Band Neo Genesis
1 Leftovers GE
2 Bebe's Search MT
1 Roseanne's Research SW
1 Celio's Network FRLG
1 Moonlight Stadium GE
1 Broken Time-Space PL
Energy
8 Dark Energy
4 Special Dark Energy
12 Psychic Energy
Total: 60