Tivash

Tivash, Gloom Summoner, is a human warlock teacher at the Witherbloom College of Strixhaven University on Arcavios.

History
It's tough to study the secrets of life and death without getting your hands dirty, which is the first thing Tivash teaches new Witherbloom students. Some call the dark forces he manipulates "evil," but he asserts that power is only as good or evil as how you use it.