Cerebor
Cerebor is an Elf Necromancer who is plagued by a single dream that is a repeat of his brother dying in a crypt he learned the power of necromancy because of it and uses it to his advantage he luckily has kept it secret without much issue but the Dark Powers has taken notice of him.
The Dark Powers has reached out to Cerebor and is hoping to be a champion of theirs a true Necromancer if he takes the deal he becomes a Lich instead.Cerebor presense however is one that is bound to bring trouble he is a threat to the rule of Strahd not due to his power but due to his potential for harm. Cerebor is enigma when Strahd tries to learn from him he is unable to.