Devan

In Eras past, Devans were considered unlucky, cursed, and destitute, not even being taken as slaves. They survived only by fleeing onto already claimed land, and carving their path by blood upon the lower ledges of the Rumazol Steppes.
-Sylvia Calaenia, The Cimmerian Archives

Have an ancient pact with Moth-Visnu that allows them to expand their lifespan at the cost of life around them through Span.