It had been a little bit since I really pushed hard with metalcraft, so here it is again. Since I was working with green and red, I also decided to throw in protection from artifacts and Gorilla Shaman, both of which work nicely with Liquimetal Coating. Mana assists weren't a big deal since the (4)/10/11/6/7/2 curve averages only 2.20, though Sol Ring still seemed prudent as a way to get an early jump, potentially. The big problem is that I have included equipment in a deck that has protection from artifacts, so I have a lot of creatures that cannot be equipped.