Bygone Bishop (VOC) from Crimson Vow Commander, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Jason A. Engle
• Card Text:
  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.")