Is Restless Anchorage legal in Standard, Modern, and Commander?

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

Restless Anchorage

Q: What type of card is Restless Anchorage?

Restless Anchorage is a Land. Its oracle text reads: "This land enters tapped. {T}: Add {W} or {U}. {1}{W}{U}: Until end of turn, this land becomes a 2/3 white and blue Bird creature with flying. It's still a land. Whenever this land attacks, create a Map token."