Hi, like I mentioned, I can still win this but based on the flow of the game, the encounter difficulty seems out of tune compared to the rest. Also Lazael running off to them doesn't help. Like I said, summoning my ogres make the encounter easy since they becomes my damage soakers.
Based on other 'bosses' encounters, due to multiple enemy, it definitely the hardest for me (in this patch). Spider boss example, even though stronger, being 1 shot by him is fine if you totally manage the party well enough since you can manage the "rezzing" . If compared to hag, also same deal, even though she does have multiple illusions, those illusions are 1 hit kill. Just imagine if those illusions were not, it will be very difficult. Other "bosses" encounters have no issues as well.
Again, based solely on just flow of the game and fight, it seems out of tune.