Whenever a land enters the battlefield under your control, investigate. (Put a colorless Clue artifact token onto the battlefield with "2, Sacrifice this artifact: Draw a card.")
Whenever you sacrifice a Clue, put a +1/+1 counter on Tireless Tracker.
Near Mint - $0.40
Lightly Played - $0.30
Moderately Played - $0.30
Heavily Played - $0.30
Damaged - $0.20
Near Mint Spanish - $0.40
Lightly Played Spanish - $0.30
Moderately Played Spanish - $0.30
Heavily Played Spanish - $0.30
Damaged Spanish - $0.20