This is my first real attempt at using Metalcraft, with 17 cards able to use it and 28 artifacts. There are 31 creatures, so this is a basic aggro deck, accelerated by all kinds of things, including the Vedalken Engineers, which are also in there to power the Vector Asps’ ability. This is pretty quick, too, and may need to come down in land, despite the turn-one risk of pulling a mulligan. It has a 1.80 average cost on a (5)/11/15/5/4 curve, with mana assists at the 0- and 2-spots.