Faith into godhood?
Hero Reg established his own Domain. With his potential, there was no need for him to take this path; faith into godhood is, after all, not as good as relying on one's own strength to condense Divinity and ignite the Divine Fire.
Faith into godhood, Divinity is the condensation of the power of faith, ethereal and insubstantial. As the power of faith gradually dissipates, the Divinity formed from it will also slowly fade away.
Deities will slowly degenerate into wild spirits... until they vanish.
Those who rely on their own strength to condense Divinity and ignite the Divine Fire can live for ages without the power of faith, probably as long as heaven and earth.
Even if not as long as heaven and earth, they can still live comfortably for tens of thousands of years, or even hundreds of thousands of years.
With Reg's wisdom, he must be clear about this.
Faith into godhood... that's not even as good as choosing to become a spirit of heroism.