Brine Elemental is a uncommon Creature — Elemental card from The List (PLST), collector number A25-47. Current market price: $0.57, 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.