Can I just say something really quick-- I'm all for making OC's and all but it really bothers me when people make OC's that are a hybrid of 2(+) species and then the OC has offspring.
I may be a snob- but it's fairly well known that hybrids are sterile. Their chromosomes will not line up correctly for mitosis and therefore they cannot produce eggs or sperm.
For the non science-ey people, they cannot breed. It's really not that hard to understand. I don't care what sort of magic they can use, it's not physically possible. I mean I have an OC who's a halfling and he's sterile, it's not that difficult, that's just not how it works.