Thoth-Amon

From WikiAOC

Earth’s most powerful sorcerer, Lord of the Black Ring and the speaker of Set, this imposing dusky-skinned man leads the snake god’s cult in Stygia. Though a master sorcerer, it is the horrifying powers of Set that help raise him above his Stygian brethren to his unassailable position of power. His dominating will and lust for power are bolstered by his fervent faith and fed by his insidious god. He has been shown to transfer his mind into that of lesser creatures, project his essence across great distances to contact others, project bolts of magical force and form shields, levitate objects, animate inanimate objects, mentally manipulate others, teleport, and summon and control demonic creatures.

His face is unknown to most, and is here illustrated by one of his minions.