Brine Elemental is a uncommon Creature — Elemental card from Masters 25 (A25), collector number 47. Current market price: $0.15 (foil $0.26), TCGplayer market prices via Scryfall.
Morph {5}{U}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When this creature is turned face up, each opponent skips their next untap step.