high skill ceiling

try opening with gastly, and use all three variants of gengar in the best way possible

Start may vary depending on luck of cards initially drawn.

Ideal Start:

Main Ideas

• Arceus ex is capable of 130 damage with a full bench and Dialga ex can quickly provide energy to Arceus ex while acting as a wall in the active slot.
• Skarmory is capable of 50 damage when equipped with a Pokemon Tool. 50 damage is enough to knock out many basic non-ex Pokemon and can also push Pokemon with higher HP below critical breakpoints while only risking 1 point for yourself.
• Chip away with Skarmory until you can use Dialga ex to generate energy for Arceus ex.

¡Only Dark Energy!

The strat is simple: 

1. Get Hypno on the Bench and Weezing (with 1 dark energy) on the Active Spot.
2. Use Hypno's ability and attack with Weezing.
3. Let Darkrai EX accumulate energies on the Bench and/or give Weezing a Rocky Helmet for extra chip damage.
4. Enjoy dealing 50-90 damage per turn plus having a 62.5%-75% chance to avoid damage on your turn, every turn (once set up).

Extra tips:

Deck more reliable and less tied to counterpart luck with LickilickyEX. More defensive.

Dialga in front, 2 energy as soon as possible, Giant Cape to help tank the first 3/4 turns.
Give the energies to whoever is on the bench, possibly Meltan -> Melmetal.
Melmetal should be managed with RockyHelmet and keeping potions for him.
Blows of 120+RockyHelmet are enough to knock down just about anything.

Very simple and fast deck. 
If you can get Manaphy and Vaporeon turn 2 you can already attack with Palkia for 150 damage.
You tend to turn 3 almost always attack with Palkia.

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.