This is the story of Morax and with all of this he ends up as a support ..... yes the god of war himself.

Morax, also known as the God of Contracts and Rex Lapis (Chinese: 岩王帝君 Yánwáng Dìjūn), was the previous Geo Archon and one of The Seven who presided over Liyue. He is also one of the two original members of The Seven still alive at the start of the game. 

He goes by a plethora of names and titles, including the Prime of Adepti, the God of Commerce, the God of Contracts, the God of War, and the Groundbreaker.

Once a year, Rex Lapis descends during the Rite of Descension, giving guidance to his people for a prosperous year and dictating trade, which is the focus of the region.

Rex Lapis is the God of Contracts, Commerce, Justice, and War — among many other names. He was the Geo Archon, and is the oldest of "The Seven", as well as possibly being one of, if not the oldest god, being over six thousand years old.

In addition to forming the geography of the region he governs, Rex Lapis defended Liyue in great battles such as the Archon War, which was waged in the area that is now Guili Plains against other gods, of which the great sea monster, Osial, that later succumbed to give rise to Guyun Stone Forest.

Morax is also the source of Teyvat's currency, the Mora — which derives its name from his. Mora is minted at the Golden House.