Exploring My Mind

Certainly an interesting one. Finally wrote my dream down after months of being lazy!
I was at what seemed to be Hogwarts...or at least, it was a Hogwarts-like setting. A smug man with a suit and combed over hair walked into the main hall, telling me I was being forced to play some kind of game. This game would have life or death consequences.
Rather than play the game, I investigated this man, spying on him and keeping tabs on his activities. I eventually found out he had an assistant named Brittany. I was able to spy on them executing students, with what looked like statues of living armor.
Sadly, this is all I could remember. Good start though after putting this off for so long.