2nd boss is very hard if you have a tank that isn’t good at dealing with those mages. You don’t have Blood DK / Prot Pally, the mages will go off. That boss doesn’t show who it’s targeting with bolts. Those bolts take half your health with a giant shield absorb.
It’s actually slightly buff to Stitchflesh according to the maths unless you use spears b2b2b. The group needs to kill Stitchflesh before 3rd aboms because the tank can’t live with Stitchflesh and double adoms.
I wouldn’t surprised that Necrotic Wake has the lowest completion key.