Cogwork Librarian
{4}
Artifact Creature -- Construct
3/3
Draft ~this~ face up.
As you draft a card, you may draft an additional card from that booster pack. If you do, put ~this~ into that booster pack.
Leovold's Operative
{2}{G}
Creature -- Elf Rogue
3/2
Draft ~this~ face up.
As you draft a card, you may draft an additional card from that booster pack. If you do, turn ~this~ face down, then pass the next booster pack without drafting a card from it. (You may look at that booster pack.)