The mono-Black five-drop turns spell casts into a free surveil 1 and then on a 4/5 body, and then at the beginning of your end step you'll have each foe sac their dork like a free Edict unless they pay 2 life per spell in your graveyard...ouchie
I'm not entirely convinced that going for a combo instead would be better
Given its already a 5/5, you can build something particularly powerful especially if you equip it with something like Pariah or Pariahs Shield
With the right setup, this card can take players out of the game without entering combat even once
This one was clearly intended as some sort of meta joke, in fairness, but overall the flavor here does leave a lot to be desired
As opposed to a more typical prison deck, pillowfort cards wont interfere with opponents directly, so its easy to misjudge the seriousness of the threat until suddenly interaction becomes impossible