User blog comment:LordRimus/New pages on wiki/@comment-26501532-20150731055634

YGGDRASIL's races mainly have three taxa, humans, demi human and heteromorphic races which groups includes evles, dwarves, humans etc. I would prefer for easy searching and understanding, just put all this races into these groups.

While classes generally are mainly only used by humans or demi humans, heteromorphic race tend to use their radical powers.

And also there isn't too much infomation on many classes explained from YGGDRASIL too.