As others have said, it's too slow for the traditional zoo-lock deck, which will likely know if it's a win or not by turn 7, and Mukla's Champion won't change anything. I've had limited success with it in a hybrid Zoo/C'thun warlock deck, but that is a slower deck, utilising zoo elements such as Forbidden Ritual and Possessed Villager for C'thun buffs (Usher of Souls) and card draw through Cult Master
As others have said, it's too slow for the traditional zoo-lock deck, which will likely know if it's a win or not by turn 7, and Mukla's Champion won't change anything. I've had limited success with it in a hybrid Zoo/C'thun warlock deck, but that is a slower deck, utilising zoo elements such as Forbidden Ritual and Possessed Villager for C'thun buffs (Usher of Souls) and card draw through Cult Master
Check out my entrant for the WCDC 9.12: Bilgewater Highroller