Is Insatiable Frugivore legal in Standard, Modern, and Commander?

Insatiable Frugivore is legal in: Legacy, Vintage, Commander.

Insatiable Frugivore

Q: What type of card is Insatiable Frugivore?

Insatiable Frugivore is a Creature — Rat Berserker. Its oracle text reads: "When this creature enters, create a Food token, then you may exile three cards from your graveyard. If you do, repeat this process. {3}{B}, Sacrifice X Foods: Creatures you control get +X/+0 and gain menace until end of turn. Power/Toughness: 2/4"