Oh and the last fight with Volgin. On extreme difficulty, the only way I could beat him was to slam him on the ground over and over again. That took forever, and if I slipped up, I think he could one-shot you pretty quickly.
I found out the optimal strategy: CQC slam, melee attack with a 2-handed weapon, switch to a second 2-handed weapon as soon as the first attack connects, melee attack with that weapon, and finally spane roll for absolute maximum damage.
---"I play with myself" - Darklit_Minuet, 2018