Vodalian Hexcatcher is a rare Creature — Merfolk Wizard card from Dominaria United (DMU), collector number 75. Current market price: $5.28 (foil $6.46), TCGplayer market prices via Scryfall.
Flash Other Merfolk you control get +1/+1. Sacrifice a Merfolk: Counter target noncreature spell unless its controller pays {1}.