
Description, catalog fields, rules text, and how it plays—in one place.
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When this creature enters, look at the top X cards of your library, where X is your devotion to blue. Put up to one of them on top of your library and the rest on the bottom of your library in a random order. If X is greater than or equal to the number of cards in your library, you win the game. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.)
Abilities, attacks, weakness & resistance
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Thassa's Oracle (PTHB-73p) is a rare Merfolk Wizard creature card. When it enters the battlefield you look at the top X cards of your library, where X is your devotion to blue, may put up to one on top and put the rest on the bottom in random order, and you win the game if X is at least the number of cards in your library. It is commonly employed as an alternate win condition in decks that maximize blue devotion or manipulate library size.
Catalog pricing data as of 15 Apr 2026, 06:41