Drag the Canal (Promo Pack) [Murders at Karlov Manor Promos]

Cost: U B Create a 2/2 white and blue Detective creature token. If a creature died this turn, you gain 2 life, surveil 2, then investigate. (Create a Clue token. It's an artifact with "2, Sacrifice this artifact: Draw a card.") "Let's gather what we can before the Golgari tidy up the scene."