5. Cho’Gall
When Cho’Gall was announced, I thought he would be really good. Imagine pairing him with Siphon Soul, a three health assassinate sounds pretty good! However, with Antique Healbots being out of Standard, Cho’Gall represents more of a threat than a bonus, particularly in light of the Molten Giant nerf making them unplayable, meaning lower health is rarely good. The other problem is that Renolock seems to be the only place Cho’Gall fits, and currently Renolock isn’t a thing. Zoolock is the only viable form of Warlock at the moment, and Cho’Gall is beyond bad there. However, if more control cards or healing cards get released down the line, I would fully expect Cho’Gall to see some play, in some form.