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Happy Yargle Day!

Plane — Secret Lair

At the beginning of each player's end step, if that player doesn't control a creature named Yargle, Glutton of Urborg, that player puts a bargle counter on a creature they control. It becomes a copy of Yargle, Glutton of Urborg, except it isn't legendary. Whenever chaos ensues, choose Swords to Plowshares, Opt, Fatal Push, Anger of the Gods, or Explore at random. Copy the chosen card. You may cast the copy without paying its mana cost.