Aven Riftwatcher - PLC Reprint (PLST) from The List, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Don Hazeltine
• Card Text:
  Flying
  Vanishing 3 (This permanent comes into play with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
  When Aven Riftwatcher comes into play or leaves play, you gain 2 life.