March of the Machine: The Aftermath

Ob Nixilis, Captive Kingpin | Legendary Creature | Demon | Flying, trample Whenever one or more opponents each lose exactly 1 life, put a +1/+1 counter on Ob Nixilis, Captive Kingpin. Exile the top card of your library. Until your next end step, you may play that card. | Zezhou Chen

Narset, Enlightened Exile | Legendary Creature | Human Monk | Creatures you control have prowess. Whenever Narset, Enlightened Exile attacks, exile target noncreature, nonland card with mana value less than Narset's power from a graveyard and copy it. You may cast the copy without paying its mana cost. | Marie Magny