P.K. Farstep, Chief Inspector

Affinity for Clues.
Gains +X/+X, where X is equal to twice the number of Clues you control.
When P.K. Farstep enters the battlefield, Investigate, then Investigate again.
Tap an Untapped Clue you control: Tap or Untap target nonland, non-Clue permanent. If you tapped an opponent's permanent this way, it doesn't Untap during their next Untap Step.