Void

The Void is a parasite entity that feeds off magic. The creature was a primordial of death but as time went on and many of the Primordial left the sphere. The void was forced out into the cracks between the planes hunting and consuming the creatures that repair the weave to sustain itself. As the creature continue to eat away at the weave and the Crystal sphere soon the gods found the creature. They attacked it trying to kill the creature. As the battel dragged on the planes were shocked by the battle causing the void to spread to all the planes with one mission to feed. The Primordial was not easy to kill. When the main body was destroyed the partials (Grimms), it spread through the planes would slowing eat at the raw magic and the weave strands in the air. Slowly growing in size and power until one of the Grimm’s were the main body and became the Void and call to the rest of them. As they collected the main body reformed as a hive allowing it to rip through the plane and eat away at the crystal sphere again starting the process over again. After eons of this the gods thought it would be best to banish it from reality and send it to Primordial chaos within the abyss. Once banish the Grimms that were created from the void partials were trapped through out the plane unable to reconnect with the main body. As the Void consumed layers of the abyss growing in power until the Weave was destroyed and the Void was allowed to travel the planes once again.
  Grimms (Voidlings): Imps: These are the weakest form of Grimms, unable to attack directly. They feed on the energy of rifts and often move in packs, following stronger Grimms or seeking out rifts to increase their power and evolve. Beasts: The second stage of Grimms, Beast Grimms are more dangerous and aggressive. Once they have nested and fed on a rift for a sufficient period, they become fast and deadly predators, guarding their territory and hunting anything that intrudes. Matriarch (The Mother): The most powerful form of Grimms, the Matriarchs are chosen from among the pack to commune with a rift and transform into a leader. They command the other Grimms and use the rift's power to create a nexus point, which they control to trap and feed on their prey. Matriarchs are cunning and use their abilities to manipulate their environment, making them formidable opponents.