Halodrol, The new cyano, and 2 compounds in Nasty Mass I believe forget what they are = too much.
Too much for 1 reason... the monsterdrol is very new, and is supposedly stronger than Phera and Superdrol. With that being said, not much has been reported about sides yet. I would run Monsterdrol solo before adding anything else to it so you know what to expect from it. It should make for a killer cycle on it's own. But I wouldn't stack it yet until I try it by itself because it's so new and supposed to be pretty damn strong.