Headscratchers / Jesus, Bro!

• What exactly was the deal between Santa Christ and the Devil? The only details about the bet was that Santa Christ would win if he could up conversions to Christianity. He does this by converting Rick with the hope that he could convert his internet followers for him. What was the Devil's half of the bet? If the bet involved converting Christians through Rick, even if Rick's antics caused chaos in the process, why did the Devil encourage Rick's work if he could have potentially lost the bet? What would have either of them won if either of them won the bet?