So, the party is in a fight with one of the Knights of the Faerie Courts (Winter, in this case) and a couple of wildfae mercenaries. During the fight, the Knight
Harry Dresden
started casting some unseelie tinged evocations, and a good time was had by all, the party wizard trying to counterspell the Knight, and the rest of the party trying to fight their way past the nasties to get to him and overwhelm him. Halfway through the fight, the Knight wound up missing the control roll by one on a spell. "Eh, it's cool" I though. "He's using sponsored magic. He'll take a point of sponsor debt to cover it." As the battle progressed, I found I was using more and more of the sponsored mojo to pin the party down. When I counted it up afterwards, I noticed he owed the Court seven points worth of service.
My question is- For a PC, I would know exactly how to deal with this. Heck, I have a hard time getting the changeling (with seelie magic) to accept any sponsored help, as PCs are rightly distrustful of being too far in debt to their sponsors. How does this fit with an NPC who was going to do what the courts asked him too anyway?
Yeah, I'm aware Harry would probably fight it, but in our campaign most of the named characters from the books have given into the darkness. If it's hard for you to imagine, just picture the battle with Lloyd Slate instead of Harry.