Ἔρεβος

erebos

boundary between life and death

source of void magic

normal markey magic based on personal will, as is normal for magics

ancient/spirit magic based on will of nature/spirits/the world

geass/code is the individual will forced upon the collective through clean doors through erebos

void magic is the individual will forced upon anything through playing with the fabric of erebos, can tear it and poke holes in it