Shadow of Erg

The antithesis to Erg, the Shadow of Erg is an intangible concept that should not exist in the living universe. In the cases where it does, it runs rampant, destroying and consuming anything with Erg or Mana. There are little to no records tied to its existence, and its belief was implied to be only a conceptualized design that remains as a theory. However, that has changed after the existence of the Fell Star incident, alongside the appearance of the Shadows and Remnants within those regions.
While its destructive capability remains unparallelled, it remains one of the most powerful forces in existence. Few dare tempt to harness it, but all comprehend the very danger that this existence holds.
There are stories of intrigued individuals and cults who attempt to control this intangible power throughout Iberia. Rumor has it that one of them has successfully harnessed its power, embodied them onto themselves. Whether they managed to live afterward is a mystery.