[quote=@Polaris North]
[@Atroposer]

I'd be willing to make a witch. Probably male. Though once they have invoked the power of the a god, what would happen to them? Would they gain powers of the gods or just... get to see them?
[/quote]

It would be played up in the instructions of invocation that they would be granted great powers or audience with a god, but in reality, they just get to speak with them, or in certain cases, a Demi-god acting as secretary, which would be expanded upon for certain gods. For example, Zeus likes to speak directly to those who wish to contact him. Hera prefers to send a peacock. As for Hades, once she was awoken, Persephone would likely be the one to handle interpersonal communications. 

From there, anything could happen to the witch. It's possible that the particular god would want them as an acolyte, a follower, or anything like that. It's also entirely possible that the god would refer them to the Fates to decide where their loyalties should lie. They could be used as a vessel to awaken a new god as well, though I still have some more lore to write up on that.