Is Windgrace Acolyte legal in Standard, Modern, and Commander?

Windgrace Acolyte is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

Windgrace Acolyte

Q: What type of card is Windgrace Acolyte?

Windgrace Acolyte is a Creature — Cat Warrior. Its oracle text reads: "Flying When this creature enters, mill three cards and you gain 3 life. *Acolytes of the lost Lord Windgrace fight to keep Urborg relics out of Cabal hands.* Power/Toughness: 3/2"