Return of the Runebound Professor

Lives are a currency, and Noah Vines is rich.
Reincarnated into the body of a poisoned magic school professor, Noah is given more than just a second chance at life. Every time he dies, his body reforms. With infinite variations of runic magic to discover and with death as nothing more than a painful inconvenience, Noah finally has a chance to wander the lands of the living once again.
And this time, he plans to get strong enough to make sure that he never has to wait around in the afterlife again.