Thanks for all the replies. It looks like there are a few different strategies depending on the fight. I think I've calmed down a bit though I still feel these changes are quite the adjustment in playstyle. I'm at least not stressing about it as much. I'll try popping it on coolodown again for some fights and see how that feels. I don't think I'll ever get to a point where I can predict Rotten Breath in AK. I just don't do the dungeon frequently enough but hopefully I can make do.