control

Replacement deck for the Darkrai EX meta with Magnezone until you have all the cards.

Toxicroak is more luck-focused unfortunately but with a well put coin toss it can knock down anything in a couple of turns.

Deck with only dark energies.

Send Druddigon ahead to die with RockyHelmet and run GiantCape on Darkrai or Toxicroak as needed.

Toxicroak should be used as a finisher, prioritize loading Darkrai if possible.

Plain and simple.
Druddigon in front with helmet to stall. 
Only water and lightning energies. 
A Dawn to make unexpected comebacks.
A Pokemon Communication to help that once in a while.

Very balanced deck that requires you to always believe in it. With Dragonite you could be down 0-2 and come back to 3-2 in 1 turn. It is much quicker to build up than it looks. 

Double energy: Water + dark

• damage backrow with Greninja
• swap with Cyrus
• stall with Arbok

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This deck relies on pivoting appropriately. Most of your damage is caused either Darkrai, Poison, or Duddigon. 

The key to this deck is playing into your opponents tempo
 

Using Spiritomb, you can use his move to put damage on all cards on the opponent's field, making it easy to control who comes to the front with Cyrus, as well as letting Weavile EX always have the damage boost. Weezing is here as another starting option as he combos well with Darkrai. Weezing can poison the active pokemon while Darkrai damages it with his ability and you can get some good damage very early in the game. As you build Darkrai, you can send him in with his guaranteed 80 damage move and his 20 damage dealing ability, making him the ace in the hole.

1 Prize point deck which aims to counter EX that rack up energies like Celebi and Gyra EX. Deck is still able to take down Charizard and Mewtwo EXs after they discard 2 energies with the help of chip damage of Druddigon and Greninja. It can be inconsistent as you may not get to needed stage 1 or stage 2 pokemon in time, but is really fun to punish those big energy EX pokemon.

Start with Druddigon and keep Pidgeot ex on bench, then use x-speed when required to clean-sweep.

Ideally you'd start with Hitmonlee, Diglett, and Dugtrio. If you're first energy is psychic play Diglett and hope the next one is fighting, otherwise play hitmonlee and start hitting the back line. Once you evolve Diglett, it and Hitmonlee should be able to give enough time to power up Mew ex. Dual energy is inconsistent but since each fighting mon only uses 1 energy it's tolerable. I tried only fighting energy but I found it better for mew to be able to do 20 damage. Especially if its the first mon you draw.