Yegor is an uninitiated Other of the 7th Level. As aura is undecided, he can potentially become a dark or a light magician. It is probable that he is also a potential mirror.
As he was used agains his will by the Light and the Dark, he is suspicious of all Others and chose a life as a normal human.
Even uninitiated he is capable of performing minor feats of magic. He uses unknowingly his powers as a stage magician and feeds on the emotions of the spectators.
In the movies, Yegor is the son of Anton Gorodetsky and is a dark other.