Shadow Goblin

Description
Shadow goblins are goblins who were exposed to the same aberrant energy that consumed the Olyothyrian city of Ise Serin and created the arnitikos. As such, shadow goblins are mortal enemies of the arnitikos, blaming the colorless elves for their curse.

Shadow goblins who procreate always produce twins. A shadow goblin's twin is its closest companion. Should one shadow goblin twin die, the surviving twin goes through a process that necromancers have dubbed "the unwinding." Over the next few months, the surviving shadow goblin's strength fades away until there is nothing left by a shadow.

Like the arnitikos, shadow goblins do not require food or drink to survive and they cannot rest unless they are within total darkness.

Appendix
For more stats/abilities visit https://www.patreon.com/posts/366-days-of-day-33736933