Right, thanks. Spoiler tag it for me but in that fight does Harkon utilise vampire form? Please tell me they made the main antagonist, the one who gave you this power, actually use it?
Yes, he fights the whole final fight in VL form. It's actually quite fun, he does a ritual standing stone style raise dead spell that raises skeletons to attack and the rest of the time he's gliding around and throwing drain balls. Pretty much fights just like the player would. Thank god he doesn't use corpse curse.