Jest, Humor Unbound

At the beginning of your upkeep, add 1 humor counter to Jest, Humor Unbound. Create 1 Joke token for each humor counter on Jest, Humor Unbound (It's an artifact with "When this artifact enters the battlefield, exile the top card of your library, if it's a permanent, you may sacrifice this artifact, if you do, put the exiled permanent onto the battlefield with "If this permanent is on the battlefield at the beginning of your next untap step, shuffle it into your library." {t}, sacrifice this artifact: Cast