I went for some Red/Black Ally action here. There is plenty in the way of mana assistance, so casting costs should be little trouble. Direct damage to creatures and opponents is handled at the higher end, and Lightning Bolts and Royal Assassins can generate fodder for the Agadeem Occultists. The balance in cards and mana curve between the two colors is almost perfect. The deck averages 2.58, which would be a minor issue, but the curve moves nicely all the way up on 8/15/9/4/2/2.