I was taking another shot at a two-color deck with Momir Vig as a possible accelerant. There are 8 monocolor cards and 4 artifacts, leaving only 28 to work on the level of two-color, but there are some interesting possibilities here. The Hedron Crabs can trigger off of Coiling Oracles, and the Tajuru Preservers prevent forced sacrifices. I really need more Trygon Predators, but two should help control runaway use of enchantments or artifacts. It is pretty cheap at 2.05 with a 9/25/2/3/1 curve. The Birds of Paradise, Coiling Oracles,  Sol Ring, and Simic Signets provide mana acceleration, and the Simic Growth Chamber adds mana diversity.