Is Lembas legal in Standard, Modern, and Commander?

Lembas is legal in: Modern, Legacy, Vintage, Commander, Pauper, Historic.

What type of card is Lembas?

Lembas is an Artifact — Food. Its oracle text reads: "When this artifact enters, scry 1, then draw a card. {2}, {T}, Sacrifice this artifact: You gain 3 life. When this artifact is put into a graveyard from the battlefield, its owner shuffles it into their library."