At the beginning of your end step, you may manifest the top card of your library. (Put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)
Exile a face-down permanent you control face up: You may play that card this turn. (You still pay its costs. Timing rules still apply.)
Primordial Mist has 2 listed printings; the most valuable is the printing from C18 at US$0.36 on TCGplayer's market price. Prices below are the cheapest in-stock listing in the United States.
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