Void Essence

Overview
Basically, a physical representation of the Shade, a creature that exists within the Void and is actively trying to consume all time and space in an attempt to get enough energy to recreate the universe as it has done an infinite number of times before this. The material is a black, opaque object resembling obsidian and comes in many different shapes, the one on Viridia is known as The Shard, shaped like a broken bit of glass and embedded in a sword.