The Witcher and The Slayer

Buffy Summers is a mutant/Slayer, hated, feared and respected for her path, born into a lineage of girls destined to slay Vampires and demons. A freak of nature and the only one of her kind. Geralt is a Witcher, upon their meeting by chance they feel less alone. But will they be allies or enemies? (I wrote this on a whim but I don't know if it's any good) Bangel, Spuffy, Geraskier