I really like the concept of this monster, it feels really original and horrifying. The abilities also do a great job of translating the concept into mechanics, with all the forced movement and exhausting the heroes stamina. It sounds like this is meant to be an alien threat in the upper worlds, but for Vasloria games I think it would also work very well as some kind of fey threat in a wode somewhere.
My only gripe is that I really don't see any connection between the project and the "one year of draw steel" theme. Very cool as it's own thing though!