Sirussu Abzu

The oldest of the great dragons. He is the elemental guardian of the Reaper's Dunes.
He was once a great dragon of cold, a servant of Inanna in the great civilisation of Babylon. But that time is long gone now he is but a husk of what he once was. A living rejection of the species he once presided over, he has been twisted by dark forces into a dracolich. A being of death and intolerance. His fear of death caused through witnessing the death of his god forcing him down this path.
Once this was a great source of division between the dragons of old but that time has long passed thanks to Akkadia and his law. He appointed Sirussu to be the protector of the Reaper's Dunes. The dead to protect the dead as it were. He has spent the last few thousand years doing this. He now resides deep within the ruins of the sun kings old temple. Sphinxes laying in guard of his rest.