It is the start location.
I was searching for some textures and stumbled upon weird stuff in the MPQ, including the Start Location. I wanted to use different textures. And I ended up adding another geoset from another aura, then I edited the material alpha anim. I hope it's not too simple. q.q
Anyways, it's for an aura in my campaign.
Update: Added nature version.
Keywords:
Mystic, Veil, Mystic Veil, Evil, Mystic Evil, I am evil, How evil, Horrible, Horrevil, w/e