[366 Days of Monsters] Day 123/366 - Soul of Casar (Patreon)

In the beginning, the world Casar was created by the raw elemental energies of the Cosmos. In time, the dulons, the "cosmic siblings" of the elements, developed creatures to inhabit the new world. These beings were designed to solve the greatest problem the dulons faced: how to stop the decay and inevitable collapse of the Cosmos. At first, these creatures shared Casar with the elements. But in time, the dulons' creations started to take advantage of the planet. The elements, disappointed in the chaotic nature of these creatures, turned against the dulons' creations. 

One of the elements' many weapons in its cold war against the creatures of Casar are these horrible creatures, dubbed "Soul of Casar." A Soul appears to be a regular swarm of chitinous insects acting as one. Don't be fooled—they are frighteningly intelligent and despicably evil. When a Soul attacks a humanoid, can enter the humanoids body and take control. Once in control, a Soul uses the humanoid to sow chaos and evil wherever it goes. Souls understand social dynamics, as well. The higher position of power a Soul can achieve, the better. Thus, they frequently target politicians, leaders, and other influencers with wide reach in order to cause more damage.  Once a Soul's host is "exhausted" the Soul leaves the body and hunts for a new target. 

It's unknown how many of these swarms exist. Pexian aberrationists theorize that the Souls are likely part of a greater hive mind that has not yet been identified. If this is true, the only way to truly stop the Souls is to destroy their core, ending their reign of tyranny once and for all.