I used this list to hit legend this season. You need a lot of practice to get succesful with it. But it‘s a lot of fun and i like this version much more than the Mecha‘thun one. Also the corrupted blood of hakkar counters Mecha‘thun decks.
if you face a lot of controldecks on ladder like any kind of priest or otk/holy Wrath pally you should try it out. This are real good matchups. But if you get fast enough to the bottom of your deck you also can win bad matchups.
enjoy your climb! 😉