Is Offender at Large legal in Standard, Modern, and Commander?

Offender at Large is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

What type of card is Offender at Large?

Offender at Large is a Creature — Giant Rogue. Its oracle text reads: "Disguise {4}{R} (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 enters or is turned face up, up to one target creature gets +2/+0 until end of turn."