[@Antarctic Termite], for Teknall the answer is simple. He'd go back to being Stone Chipper.

Given that a lot of Teknall's power comes from technology in its various forms, not having access to divine power merely slows him down rather than completely negating his abilities. He'd probably prioritise finding some method of indefinitely extending his lifespan, if that isn't a given. And regaining access to his Workshop. If he can access his Workshop then things become much easier for him.