Play it like normal humans until you get 8 or so decay. Then your combos come online. Scanimovore+brood and scanimovore+necrogeddon let you draw your whole deck. The just sac for resuorces each turn and keep playing stuff. Brood lets you play hasted harversters which are always fun. I rarely play the scanimovore without a brood or a necro, because your opponent WILL destroy before your next turn. Sometimes you can get away with it versus growthor decay, but it is usually better just to sac the combo parts until you have 8+ decay.