Whenever a player casts a spell from his or her hand, that player exiles it, then exiles cards from the top of his or her library until he or she exiles a card that shares a card type with it. That player may cast that card without paying its mana cost. Then he or she puts all cards exiled with Possibility Storm on the bottom of his or her library in a random order.
Illus. Jason Felix
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MYTHICSPOILER.COM THE CYCLICAL MTG SPOILER
MythicSpoiler is a dedicated visual spoiler, designed to let you EXPLORE, DISCOVER and EXPERIENCE new Magic the Gathering sets in a simple, sortable gallery.
MAGIC 2014 
MODERN MASTERS 
GATECRASH 
RETURN TO RAVNICA
MAGIC 2013
AVACYN RESTORED
DARK ASCENSION
INNISTRAD
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