Riygogoth

Riygogoth (raɪːgɒːgəθ), The Festering One, a Yagathian god of death and pestilence, he was said to be able to destroy anything he touched and also his wrath on the Yagathian Empire is legendary.

Mythology
Riygogoth was responsible for the earthquake that struck the Yagathian city of Shusaqah killing all the inhabitants within its borders.

This eventually caused a great famine that starved the entire inhabitants and diseases broke out finishing the Yagathians off with horrific

"'Riygogoth has cursed the Radiant Race with his wrath of plagues and destruction...Their food was riddled with the blight of his hands on the Great Cities made them uninhabitable... The plagues broke out and wiped out the Radiant Race who once called it their home...'"

The Destruction of Jnaluquh
The city Jnaluquh was also destroyed by him and all of the inhabitants were burned and devoured by the flames.

He then enslaved the rest of the inhabitants to worship him as their god or perish and some of them chose death.