Unification. Usually, this concept is seen as a positive. Coming together for a common cause. However, not all things use it for the betterment of all life. Some use it for the betterment of themselves, sometimes to literally propagate themselves; an all out cosmic domination campaign. For survivors sane enough to resist its curse, they will recant tales of an entity more than capable of unraveling all reality… and rebuilding it in a gruesome image.
Despite hailing from some alien dimension, accessed through planar loopholes and demiplanes, this entity is not driven by chaos or randomness, as we might assume. Scholars believe that this thing has taken interest in our takes on law, order and of course unity. However, it strives to perfect it. To material plane minds, the result is a sickening perversion that inspires madness and revulsion.
Author’s Note: The culmination of all sorts of cosmic and body horror. Here are a few powerful creatures that could make for some truly horrifying end game baddies, short of an elder god itself. Mix a little Dark Souls, Halo, Innistrad and Warhammer 40K and you have these abominations. Also, I realized that my homage to Hanweir is quite similar to Kor-Artificer’s. Great minds think alike, I guess. Either way, I can certainly say that I’ve created one of he most horrifying things I can imagine. All for a part of the Unity!