Brine Elemental (TSP) from Time Spiral, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Stephen Tappin
• Card Text:
  Morph 5UU (You may play this face down as a 2/2 creature for 3. Turn it face up any time for its morph cost.)
  When Brine Elemental is turned face up, each opponent skips his or her next untap step.