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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
Other cards from Theros Beyond Death
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Thassa's Oracle (THB-73) is a Merfolk Wizard creature from Theros Beyond Death. Its triggered ability examines a number of cards equal to the blue mana symbols among permanents you control and lets you put up to one on top while moving the rest to the bottom in a random order, with a special condition that can end the game when that inspected count is large relative to your deck. Players commonly pair it with effects that reduce deck size or increase blue-symbol counts to reliably exploit that condition.
Catalog pricing data as of 12 Apr 2026, 23:11
