Mega Mewtwo - Y / Trevenant (new one)

[rgp151]

This appears to be a pretty killer combination that uses both disruption and powerful attacks. 

 

By using the new Trevenant you both delay the opponents setup and if they do put more energy on so they can attack, then it just increases the damage that Mega Mewtwo can do against them. Trev is also good against Regice and is not weak to psychic, so he makes a good alternate attacker.

 

Basically:

 

4X3 Trevenant  

3X3 Mega Mewtwo

2 Shyamin-EX

 

Put in some Head Ringers as well, and other typical Mewtwo stuff. I think Shrine of Memories over Dimension Valley.