Thassa's Rebuff

Instant - (uncommon)

Counter target spell unless its controller pays , where X is your devotion to blue. (Each  in the mana costs of permanents you control counts toward your devotion to blue.)

To resist Thassa is to deny the rising tide.

Price

cardmarket 0.25

tcgplayer 0.7

cardkingdom 0.35

cardsphere 0.23