Trail of Evidence

Shadows over Innistrad (SOI) #93 · Uncommon · Enchantment

Mana cost: {2}{U}

Whenever you cast an instant or sorcery spell, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")

"Every answer seems to lead to a more terrifying question."
—Jace Beleren

Illustrated by Daniel Ljunggren · Released April 8, 2016

Prices

Nonfoil price since August 29, 2026: up $0.08 USD (28.6%) to $0.36 USD; low $0.28 USD, high $0.36 USD.

2016-04-08 · wotc — Clue is an artifact type. Even though it appears on some cards with other permanent types, it's never a creature type, a land type, or anything but an artifact type.
2016-04-08 · wotc — You can't sacrifice a Clue to pay multiple costs. For example, you can't sacrifice a Clue token to activate its own ability and also to activate Alquist Proft, Master Sleuth's ability.
2016-04-08 · wotc — If an effect refers to a Clue, it means any Clue artifact, not just a Clue artifact token. For example, you can sacrifice Wrench to pay for Alquist Proft, Master Sleuth's activated ability.