Originally Posted by
Cesarosaurus
Basically, you need to abuse Revenge and Victory Rush. Everytime you parry, revenge reset its cooldown even with the curse up.
Keep a few fanatics alive and spam revenge into boss. Use victory rush and Shield Barrier when curse is not up. If there are too many Adherents go around and spam revenge them down, or use bladestorm. When you reach phase 2 there shouldn't be any adherents, save your interrupt on the death & decay thingie so you can pull the boss out to a safer spot. Kill all the adherents coming out in p2 with the same revenge spam strategy and keep those fanatics alive (they going to die anyway, but more parry = more revenge).