User blog comment:ChishioKunrin/How much work would go into a RWBY MMO?/@comment-25396609-20150911190220

Semblance is easy, go the city of heroes power route.

Origin could be replaced with type, easiest reference would be the ones we use for the semblance thread in off topic.

Then you sort down by the various things like range, offensive/defensive, etc, until you get a list of options that fit your criteria, and finally you customize the visuals.