Is Ob Nixilis, Captive Kingpin legal in Standard, Modern, and Commander?

Ob Nixilis, Captive Kingpin is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Ob Nixilis, Captive Kingpin

Q: What type of card is Ob Nixilis, Captive Kingpin?

Ob Nixilis, Captive Kingpin is a Legendary Creature — Demon. Its oracle text reads: "Flying, trample Whenever one or more opponents each lose exactly 1 life, put a +1/+1 counter on Ob Nixilis. Exile the top card of your library. Until your next end step, you may play that card."

Legendary Creature — Demon

Flying, trample

Whenever one or more opponents each lose exactly 1 life, put a +1/+1 counter on Ob Nixilis. Exile the top card of your library. Until your next end step, you may play that card.

Set March of the Machine: The Aftermath

Rarity Mythic Rare

Mana Value 4

Artist Zezhou Chen

Collector # 41

Scryfall Gatherer