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
Other cards from Mystery Booster 2
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Thassa's Oracle (MB2-175) is a rare Creature — Merfolk Wizard reprinted in Mystery Booster 2. Its triggered ability inspects a number of cards equal to your devotion to blue and can cause an instant win if that devotion is at least the number of cards left in your library. It is commonly employed as a one-card win condition in decks that reduce library size or maximize devotion.
Catalog pricing data as of 12 Apr 2026, 22:32
