Unshakable Tail

When Unshakable Tail enters and at the beginning of your upkeep, surveil 1.
Whenever one or more creature cards are put into your graveyard from your library, investigate. (Create a Clue token. It’s an artifact with «{2}, Sacrifice this artifact: Draw a card.»)
{2}, Sacrifice a Clue: Return Unshakable Tail from your graveyard to your hand.

Card Details:
Set: Murders at Karlov Manor Commander
Collector Number: 29
Artist: Sean Murray