Is Arcane Proxy legal in Standard, Modern, and Commander?

Arcane Proxy is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Arcane Proxy

Q: What type of card is Arcane Proxy?

Arcane Proxy is an Artifact Creature — Wizard. Its oracle text reads: "Prototype {1}{U}{U} — 2/1 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.) When this creature enters, if you cast it, exile target instant or sorcery card with mana value less than or equal to this creature's power from your graveyard. Copy that card. You may cast the copy without paying its mana cost."

Artifact Creature — Wizard

Prototype — 2/1 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.)

When this creature enters, if you cast it, exile target instant or sorcery card with mana value less than or equal to this creature's power from your graveyard. Copy that card. You may cast the copy without paying its mana cost.

Set The Brothers' War

Rarity Mythic Rare

Mana Value 7

Artist Kekai Kotaki

Collector # 75

Scryfall Gatherer