Scizor Ex/Dialga/Metang

From a good bit of testing this list has done very well so far. Scizor Ex knocks out a bunch for 240 damage very easily, and can take out a lot of squishy basics with its first attack - Steel Wing - dealing 70 damage, while at the same time prevent 50 damage on itself for the next turn - allowing you to quickly start disassembling your opponent's board while surviving most hits. Metang accelerates like crazy for you, need a minimum of two on the bench usually. 3 Super Rods are very necessary to continue to recycle Metal Energies back into the deck for Metang. 

Dialga Vstar really lets you take out Charzard ex and hit for big numbers when you need and make big prize shifts with its Vstar attack. And Scizor with Max Belt can also 2 shot a Charzard ex if you use the first attack with Steel Wing, take the hit (-50 damage) and then swing with Cross Breaker. Thats a total of 120+290 damage.

First turn set up ideally is have a Scyther, Arven, and an energy in hand. Arven for a Buddy Poffin and TM: Evo. Buddy Poffin for 2 Beldum and TM: Evo with Scyther for 2 Metang right away. Also don't always evolve your Scyther right away because the 151 Scythers have free retreat.

The 1 prize Scyther comes in clutch for a lot of games too and Zamazenta is always another 1 prize option. Lastly, I go 4 Judge over 4 Iono because you usually want to reshuffle the cards that got sent to the bottom of the deck from Metang. Make sure you get Greninja on the bench fast too. Otherwise you'll proly brick on your draws as the deck has very little draw support.