Is Diluvian Primordial legal in Standard, Modern, and Commander?

Diluvian Primordial is legal in: Modern, Pioneer, Legacy, Vintage, Commander.

Diluvian Primordial

Q: What type of card is Diluvian Primordial?

Diluvian Primordial is a Creature — Avatar. Its oracle text reads: "Flying When this creature enters, for each opponent, you may cast up to one target instant or sorcery card from that player's graveyard without paying its mana cost. If a spell cast this way would be put into a graveyard, exile it instead."

Creature — Avatar

Flying

When this creature enters, for each opponent, you may cast up to one target instant or sorcery card from that player's graveyard without paying its mana cost. If a spell cast this way would be put into a graveyard, exile it instead.

Set Outlaws of Thunder Junction Commander

Rarity Rare

Mana Value 7

Artist Stephan Martiniere

Collector # 96

Scryfall Gatherer