Trail of Evidence

Whenever you cast an instant or sorcery spell, investigate. (Put a colorless Clue artifact
token onto the battlefield with "2, Sacrifice this artifact: Draw a card.")
"Maybe I am a mess. Maybe I’m crazy. Maybe
I’m out of my mind! But, God help me, I will keep
these lights up until the day I die if I think there’s a
chance that Will’s still out there!" - Joyce Byers