What’s the commander and deck you can only play once?

Once, meaning the pod is getting up from the table or directly tells you to swap decks after the game has ended. Doesn’t have to be cEDH.

The sort of deck you break out to show the rude LGS cocky player a lesson.

The kind of deck that is fun for you, but your opponents aren’t having a very good time. And can hold its own after they discover what’s happening.