Is Courier's Capsule legal in Standard, Modern, and Commander?

Courier's Capsule is legal in: Modern, Legacy, Vintage, Commander, Pauper.

Courier's Capsule

Q: What type of card is Courier's Capsule?

Courier's Capsule is an Artifact. Its oracle text reads: "{1}{U}, {T}, Sacrifice this artifact: Draw two cards. *In ages past, Esper couriers bore messages written on ornate scrolls. The medium has grown more sophisticated, but the principle remains the same.*"