Counter target spell unless its controller pays {X}, where X is your devotion to blue. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.)
To resist Thassa is to deny the rising tide.
Live market data
$0.21 – $0.82
Nonfoil $0.21 Foil $0.82 Cardmarket €0.32
TCGplayer & Cardmarket market price
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