We wiped on Yor'sahj forever. They increased the explosion damage by purple and our previous kills were based on blowing up the tank at a certain point. That became impossible. We essentially had to have our healers re-progress on it. That said, we killed it a minute faster than before (just past 6 minutes) when we finally got the strategy down. I expect Zonozz to be a walk in the park, we were a little ahead of enrage now it should be even easier. We didn't have H Hagara down but we were close, I'm assuming the nerf will push us over that edge as well.