Hearthpwn

I hit Legend day 1 of the xpac with priest, back when people were still optimizing DH, so the climb was far easier than usual but unfortunately that puts me in an unusual position of not being able to offer any real advice on the matter.

My best suggestion would be to find a fast DH deck with a high win rate and grind as much as you can before the next round of nerfs hit because once they do, you'll likely have to wait to see how the meta settles before you can evaluate the best way to climb again.

Good luck.