White had Leeches I know, but it's VERY bad (which is why it found a spot as a secondary kill condition in Relentless Pony)...
Black had some poisonous attackers, but they were only mildly evasive and pretty weak too. Um, Crypt Cobra, Swamp Mosquito, Pit Scorpion, and Suq'Ata Assassin (I think)...