[@Cuccoruler] A magic user is the normal mage or wizard, whatever you want to call them. They are people who had magic power before the crystal shattered, and for the most part were apart of one of the two factions before the event as well.

A Niflheim has their powers 'artificially.' Their powers stem directly from the Yin crystal shard that attached to their soul. They are, at the moment, quite clumsy with their powers but eventually will become unbelievably powerful for they must fight Dormammu at the end of all this.