Builders and the Butchers

So we start out by laying the depths, or preordaining, or simply dropping a land and pass. once we get a chalice kicked, we can usually run the game off of two lands. from here grand architect can help us ramp into whatever artifacts we tutor up with our mages. from there, contagion engine can proliferate most of the artifacts that do stuff. i am considering using tezzerets gambit instead of jace, and trying to work in infect without splashing colors. maybe blighted agent somewhere? i still need to do something better with the sideboard...