The Refaïm are a tribe of barbaric ghost giants from the netherworld, Sheöl. They came back from the dead to oppose the ‘Ivrit Revival Movement. Besides their enormous size, they boast top-notch healing skills. So naturally they formed a covenant to serve as medics for the Bavel Macrostructure. They also represent the “ghost words” in linguistics.
The Refaïm comes from the רפא shoresh root and family.