Name: Dwy'dhaoig'ywl (Short name: Dwy'ywl)
Powers:
Dark Spawn: Can plant a small seed of darkness from his own mass in the shape of a tentacle, which corrupts nearby low level creatures. They find themselves slowly losing their rationality, as they become more agressive, primal, and their rationality replaced by a desire to bring flesh and minds to the Dark Spawn. High willpower creatures can resist this effect but can too fall prey if they stay in it's aura for extended periods of time. Flesh and mind brought to the Dark Spawn will be grabbed by the Spawn, absorbed and gives the Spawn the energy needed to grow. As it grows, its aura expands and commands more lower level entities to feed it. It is thought a sufficiently powerful Spawn could potentially form into a new Dwy'dhaoig'ywl, but it has never been seen before.
Darkwraith: Has an aura which absorbs light near him, which slowly makes nearby environments darker. The more power he has, the larger and more powerful this effect becomes. He is capable of controlling it, but it is mostly involuntary. Mortal creatures not loyal to him slowly become darker in nature, reverting to a more primal state, and in humans, a loss of their humanity. Creatures loyal to him gain a power boost.
Absorption: An entity which comes in direct contact with the mass of darkness which is his being is frozen, then slowly absorbed. All characteristics of the entity are added to the mind of Dwy'dhaoig'ywl, including their knowledge. Higher level entities retain their cognition to an effect, but are completely under his spell and weak. They may be able to escape if circumstances allow it. Lower level entities cognition is utterly destroyed, as are they.
Description: A floating, squirming and undulating mass of darkness. Occasionally from within the mass of darkness, tentacles will poke forth and eyes may drift about, as if they were orbiting the mass. The mass is contiguous and cohesive, but is utterly dark, and may even appear to absorb nearby light at times.
(Yes, I stole Darkwraiths from Dark Souls apologies. Any resemblance to Elder Scrolls Daedra, living or dead, is purely coincidental.)