Another Worlds Hommunculus by Samuel Act

Ellis died an unexpected death. Before he could experience the sweet bliss of eternal rest, a God-like being whisked him away to parts unknown. The God told a tale of another world in grave jeopardy and the need for a hero (or several heroes) to go there and save its people. It looked to be a typical story of transmigration when suddenly, something unexpected happened. Now, Ellis finds himself standing in the middle of an ancient tomb, with a lineage that wasn’t exactly normal and a body that wasn’t entirely human.