Mageneticist

Not just the founder of the magic pseudoscience, but started some point during the Old World and has been alive so long that his original name is unknown.

Genetically folded a temporal trigger into a super soldier that would appear during world-level threats. That being is Ninarth.

Built a genetic copy of Shanaat Eater of Ship without a mind of its own, and he sails around the Impossible Sea with his Selkie creations.