Is Ashiok, Nightmare Muse legal in Standard, Modern, and Commander?

Ashiok, Nightmare Muse is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Ashiok, Nightmare Muse

Q: What type of card is Ashiok, Nightmare Muse?

Ashiok, Nightmare Muse is a Legendary Planeswalker — Ashiok. Its oracle text reads: "+1: Create a 2/3 blue and black Nightmare creature token with "Whenever this token attacks or blocks, each opponent exiles the top two cards of their library." −3: Return target nonland permanent to its owner's hand, then that player exiles a card from their hand. −7: You may cast up to three spells from among face-up cards your opponents own from exile without paying their mana costs."

Legendary Planeswalker — Ashiok

+1: Create a 2/3 blue and black Nightmare creature token with "Whenever this token attacks or blocks, each opponent exiles the top two cards of their library."

−3: Return target nonland permanent to its owner's hand, then that player exiles a card from their hand.

−7: You may cast up to three spells from among face-up cards your opponents own from exile without paying their mana costs.

Set Theros Beyond Death

Rarity Mythic Rare

Mana Value 5

Artist Raymond Swanland

Collector # 208

Scryfall Gatherer