Is Thornvault Forager legal in Standard, Modern, and Commander?

Thornvault Forager is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Thornvault Forager

Q: What type of card is Thornvault Forager?

Thornvault Forager is a Creature — Squirrel Ranger. Its oracle text reads: "{T}: Add {G}. {T}, Forage: Add two mana in any combination of colors. (To forage, exile three cards from your graveyard or sacrifice a Food.) {3}{G}, {T}: Search your library for a Squirrel card, reveal it, put it into your hand, then shuffle."