An artifact deck, based around the theme of a giant factory, spitting out golems, at an alarming rate.
This deck starts a little slow, first creature won't enter until at least turn 3. This, will usually be your palladium myr, allowing you ideally to cast, next turn, a semblance anvil, imprinting an artifact creature to it, giving all creature, and all artifacts cost 2 less to cast, this gives you 2 mana left available, you can cast etched champions, and start dumping out steel overseers for free. Next focus on getting prototype portals into play, ideally you will want to attach a cheap cart to it, as it does not benifit from the semblance anvil. Lodestone gargoyle is particulary impressive on this as it will royally screw over any non artifact deck, putting one or 2 of those out every turn. Prototype portal on a voltaic key is pretty impressive too as you can use the key to untap the portal, to make a new key, to untap the portal, and so on. NEVER play the mindslaver, until you have a prototype portal in hand, and 10 mana on the table. This is a game over. You can now make one every turn, and activate it and sac it every turn. Thus taking over your opponent every turn (Be sure to tap him out every turn so he cant cast any instants (Or better yet, cast them on HIM).
The last nasty trick you can play, and this is only reccomended if you are playing in multiplayer or against a slower deck, cast prototype portal, ON a prototype portal, and every turn, attach a new card from your hand to a new prototype portal, thus making EVERY CARD a token popping machine.
For a truly RETARDED combo, pop steel overseer on one portal, and the sideboard myr propogator on the other, and build yourself an army.