Is Dog Walker legal in Standard, Modern, and Commander?

Dog Walker is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

What type of card is Dog Walker?

Dog Walker is a Creature — Human Citizen. Its oracle text reads: "Vigilance Disguise {R/W}{R/W} (You may cast this card face down for {3} as a 2/2 creature with ward {2}. Turn it face up any time for its disguise cost.) When this creature is turned face up, create two tapped 1/1 white Dog creature tokens. Power/Toughness: 3/1"