Confirm Suspicions 
Instant
Counter target spell.
Investigate three times. (To investigate, create a Clue token. It's an artifact with "
, Sacrifice this token: Draw a card.")
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL