Guff Rewrites History

For each player, choose target nonenchantment,
nonland permanent that player controls. Those permanents' owners shuffle them into their libraries.
Each player who controlled one of those permanents exiles cards from the top of their library until they
exile a nonland card, then puts the rest on the
bottom of their library in a random order. Each
player may cast the nonland card they exiled without paying its mana cost.