Witches were made to kill all fantasy since theyre too powerful to be left alive alongside humans
Theyre made of PaleoMagic + technology, and have the goal of course correcting the natural order ever since the sharp plummet in human population, decimation of Nature and the influx of foreign creatures destroying ecosystems and replacing them.

Later they would strike a deal with Griva to use some of the sperm/eggs to create more efficient witches (more genetically stable and powerful- but more) susceptible to emotions and bonds

Griva would agree to this since it’d be less threats to humans and less work and repairs for its Gbots

Witches live in the sky. They live in structures similar to beehives. The Grandwitch, with a nurturing hand, keeps that Beehive it created afloat with her magic

How they work