Slippery Bogbonder This sounds like an old-timey insult to me
And not just any deck, but a deck that wins
Traditionally, Un -sets have been utilized as test space for future Magic designs, so it would make sense to see this sort of evolution
This usually means that interaction often gets held back so that players can show off their decks, and when someone has assembled a flashy win around the hour mark, the game usually ends (even if someone had a removal spell)
This means you reanimate or cast it and then wait through the phases for the turn to wheel before the Muse does its thing, which is rarely acceptable to the table
Which raises not only the question of which are the best Lessons, but which are the best Lessons to have in a Wishboard