Caskey just has to beat Jamie and he can make it a full sweep.

The rules are:

• Loser of the battle gets subjected to the winner's favorite transformation (which is known ahead of time)
• Anyone who the loser previously defeated gets turned back to normal
• Everyone goes back to normal when it's time to go home
• If one person can defeat all of the others, there are no more battles and everyone stays like that for the rest of the day.