Gianasti

According to scholars, the remnants of the primordial creature Ysenn caused the birth of the Gianasti. A race of colossal elemental humanoids.
It is currently accepted that almost all elementals of Ysenn, such as the Genasi are all descendants of this race. Allegedly the union of the celestials and gianasti birthed the giants.
All the gianasti that did not die during the war with the celestials during the interim of conformance, died of natural causes over time, except for the god of war whom is said to be the last living gianasti.