THE PSYCHOMANCERS

The Psychomancers are eldritch beings from a warped, starless dimension called the Neurovoid where thought itself takes form. Resembling luminous hybrids of jellyfish and spiders, they drift through the void, drawn to worlds teaming with sentient life. When a Psychomancer finds a suitable host, it attaches to the victim's nervous system, fusing its tendrils deep into the mind to seize full control of their body and consciousness. Entire civilizations have fallen under their silent dominion, their hosts speaking with one voice - the will of the Pychomancer Collective, a hive of pure intellect seeking to dominate and reshape all thought across the multiverse!

https://open-source-superheroes.fandom.com/wiki/Psychomancers