Is Gallifrey Council Chamber legal in Standard, Modern, and Commander?

Gallifrey Council Chamber is legal in: Legacy, Vintage, Commander.

Gallifrey Council Chamber

Q: What type of card is Gallifrey Council Chamber?

Gallifrey Council Chamber is a Legendary Land. Its oracle text reads: "When Gallifrey Council Chamber enters, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.) {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a Time Lord or Alien spell or activate an ability of a Time Lord or Alien."