Is Fire Nation Palace legal in Standard, Modern, and Commander?

Fire Nation Palace is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Historic.

What type of card is Fire Nation Palace?

Fire Nation Palace is a Land. Its oracle text reads: "This land enters tapped unless you control a basic land. {T}: Add {R}. {1}{R}, {T}: Target creature you control gains firebending 4 until end of turn. (Whenever it attacks, add {R}{R}{R}{R}. This mana lasts until end of combat.)"