This is something my co-worker and I came up with. It's been pretty fun to play. I don't have a sideboard at the moment.

The basic objective is to ramp up (thanks to the Simulacrums, Emissaries and Enchantments) to bring out a few big swingers. Then the Twins and Metamorphs are in there to either copy some titans, some useful creature an opponent controls or to deal with my opponent's irritating Legendary's. We use various control cards to try and disrupt the opponent throughout the game.