Rise of Zaa a High priest of Death

The story of a lizard man that is a villain in a world where there is few undead. See as a Reincarnated person with one thing on his mind; to cause a calamity. It will start with the Mc at 15 where is clan is driven from the wet lands and him being banished after being left for dead in the harsh desert the original owner of the body dies as he takes control.