Carousel of Mendacity

When Carousel of Mendicaty enters the battlefield, start a feast. (Create a colorless
legendary enchantment token named Feast with: "At
the beginning of your upkeep, reveal the top card of
your library. If it's a creature or a land card, sacrifice
this enchantment." )
Whenever you reveal a creature card from your library, you may put it into your graveyard.
If you do, you may cast it from your graveyard
this turn.