Ob Nixilis, Captive Kingpin
Legendary Creature - Demon | Power/Toughness: 4 / 3 (CMC 4)
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.
- [MAT] March of the Machine: The Aftermath #41 (M)