I once played a Consecrated Ground that had no BFBs. I barely beat it NLL with tier 3 wizards and 2-2 super monkeys (tier 3 not unlocked then)! I do think I got a MOAB as early as round 3, though. I'm iinterested in seeing what early-bird rushes you faced and if ZOMGs or DDTs appeared on your Consecrated Grounds.