Thassa's Oracle
Every rules interaction we've explained for Thassa's Oracle, alongside Wizards of the Coast's official rulings. Pick a combo below, or check it against a card we haven't covered yet.
Oracle 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 
in the mana costs of permanents you control counts toward your devotion to blue.)
Explained interactions
Official rulings
2020-01-24- Wizards of the Coast · 2020-01-24
Colorless and generic mana symbols (
, 
, 
, 
, 
, and so on) in mana costs of permanents you control don't count toward your devotion to any color.
Official rulings, quoted verbatim via Scryfall. Not AI-generated.
Check Thassa's Oracle with another card
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