Cogwork Librarian 
Artifact Creature — Construct
Draft this card face up. As you draft a card, you may draft an additional card from that booster pack. If you do, put this card into that booster pack.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL