(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.) , Choose target creature. Its owner shuffles it into their library, then investigates (To investigate, create a colorless Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card."). , Create a 2/2 black Alien Angel artifact creature token with first strike (This creature deals combat damage before creatures without first strike.), vigilance (Attacking doesn't cause this creature to tap.), and "Whenever an opponent casts a creature spell, this permanent isn't a creature until end of turn."