Shadows over Innistrad Remastered

Bygone Bishop

Flying
Whenever you cast a creature spell with mana value 3 or less, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")

Commander Legends: Battle for Baldur's Gate

Crimson Vow Commander

Flying
Whenever you cast a creature spell with mana value 3 or less, investigate. (Create a colorless Clue artifact token with "{2}, Sacrifice this artifact: Draw a card.")

Shadows over Innistrad

Flying
Whenever you cast a creature spell with converted mana cost 3 or less, investigate. (Put a colorless Clue artifact token onto the battlefield with "{2}, Sacrifice this artifact: Draw a card.")