Tireless Tracker (MOC) from March of the Machine Commander, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Eric Deschamps
• Card Text:
  Landfall — Whenever a land enters the battlefield under your control, investigate. (Create a Clue token. It's an artifact with "2, Sacrifice this artifact: Draw a card.")
  Whenever you sacrifice a Clue, put a +1/+1 counter on Tireless Tracker.