dean + sam + adaar.
Let me talk to the other mages. If you know anyone who's good with magic or might be able to help build a binding spell for an archangel, we should get them involved as well.
Thankfully, magic is hardly set in stone, and we have a mage here who specializing in developing new spells. We're going to save your friend, Sam, even if we have to play nice with the Devil until then.