Is Elixir legal in Standard, Modern, and Commander?

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

Elixir

Q: What type of card is Elixir?

Elixir is an Artifact. Its oracle text reads: "This artifact enters tapped. {5}, {T}, Exile this artifact: Shuffle all nonland cards from your graveyard into your library. You gain life equal to the number of cards shuffled into your library this way. *Fully recovers HP and MP.*"

Artifact

This artifact enters tapped.

, , Exile this artifact: Shuffle all nonland cards from your graveyard into your library. You gain life equal to the number of cards shuffled into your library this way.