Hi everyone and thank you for your comments!
The question basically is: why that high polycount? Where are all those vertices used exactly, and why are they necessary?
Well, It'll be really hard to explain. When I started the model I didn't want it to be lowpoly as the default Golem Statue, the Über-Golem was designed to have huge ingame size, so I did not limit myself in shaping these smooth pauldrons, skull and some other parts. The amount of vertices could by explained by a very comlex UV map. Sometimes there are 2 or 3 vertices in one place just because the nearby polygons have absolutely different UV map placement.
Why does it give off Sigma vibes?
The model was made purely using my own imagination, I definately didn't inspired by this "Sigma" thing.
Hm.. are these golem animations, or custom? O-o
That's a right question!

Most of the animations came from the Blizzard's Golem Statue, excluding the Death, Decay and Dissipate, those are made by me.
