U/B Artifact Pain and Gain (Standard)

The deck is mainly black and colorless with a blue splash for planeswalkers and a sideboard for control matchups or other matchups that dodge our removal.

We only run four creatures because they don't combo with Metalwork Colossus. By the same token we aren't running vehicles because there's no creatures to crew them with.

The plan is to have decent card draw ability, really good mana, lots of easy to cast colorless spells, hard removal, and real threats. In true Dimir fashion the plan is to remove the opponent's win conditions and survive until we can play our own.

Underhanded Designs helps us survive by adding some extra value to our cheap artifact plan. Inventor's Fair and Battle at the Bridge give us further survivability. Eight hard removal spells, two board wipes, and two Tezzeret the Schemers should allow us to take care of any large threats our opponent plays. We can side out our removal for counters in matchups that don't play creatures, or hinge on non-creature spells. All that aside, the game plan is to power out Metalwork Collosus and make it unblockable via Key to the City and/or take over the game with our walkers.