Confirm Suspicions

Counter target spell.
Investigate three times. (To investigate, put a colorless Clue artifact token onto the battlefield with "{2}, Sacrifice this artifact: Draw a card.")

Counter target spell.
Investigate three times. (To investigate, create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")

Murders at Karlov Manor Commander

Counter target spell.
Investigate three times. (To investigate, create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")