Thassa's Oracle is a rare Creature — Merfolk Wizard card from Magic: The Gathering (Theros Beyond Death Promos, PTHB).
Rare
Theros Beyond Death Promos (PTHB)
{U}{U}
Power / Toughness
1 / 3
Mana Value
2
Colors
U
Card Text
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.)
