Whoa, I never even thought of the implications of becoming a vampire. If Durkon as a vampire is now able to go toe-to-toe with Redcloak, that could be a parallel of sorts to V using the powers of darkness to fight Xykon and the dragon. Except in this case, Durkon would be a vampire involuntarily (unless the others are able to find a cure, and he refuses it for this reason) whereas V became a soul-spliced creature voluntarily.