Cool, cool. Figured I'd probably see at least Darkrai. But I come prepared! Let's do this, Virgil!
Start by protecting yourself with Safeguard, and then Calm Mind. After that, be a good giant farking antimatter dragon god and pop off for a Shadow Force; aim it at MM's Mewtwo, if you please. See how he likes it when you come in to give him a big hug next round.