I've played a little bit of Zoo with success, but I don't particularly like Kripp's list. Mortal Coil and Cult Master don't fit, as you're not short of ways to push damage or card draw. Volcanic Drake dies much too easily, and Sea Giant is already taking advantage of cases when you have a large board. I don't like Horserider either, and am not sure about the Egg.
I've had a lot of success with Tempo Mage. I'm playing
this minus one MC for Sylvanas, and with Arcane Explosion on a stick in place of Forbidden Flame because I don't have it, though I'm not happy with that sub. Faceless Summoner is amazing, and MC is surprisingly good, although it might not be in the best version of the list. The 3/2 with spell damage makes Arcane Blast incredibly consistent.
I put N'Zoth in a wild Secret Paladin and never played him in about 10 games.