Editing The Gang's All Here: The Godbinder (section)

==God Haggling==
At any point, you may hold your D12 to talk to one of the gods. You can then request an effect.

For effects akin to spells in a classical RPG, the GM will give you a difficulty for the Minor Miracle and you will roll a dice pool. These will be a little harder than the free Minor Miracles. You can only request Minor Miracles from gods that you have a level in.

Major Miracles can be anything a specific god could conceivably do, with the payment demanded proportionate to the difficulty. You can talk to gods you have no relationship with, but you’re effectively someone they met at a party once calling up to ask a favour. It always helps if it’s on a subject they care about.

You will roleplay a short scene with the god, and a cost will be agreed. This normally leads to a quest, an objective and/or God Debt. 

God Debt? Glad you asked.