Is Chromeshell Crab legal in Standard, Modern, and Commander?

Chromeshell Crab is legal in: Legacy, Vintage, Commander.

Chromeshell Crab

Q: What type of card is Chromeshell Crab?

Chromeshell Crab is a Creature — Crab Beast. Its oracle text reads: "Morph {4}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When this creature is turned face up, you may exchange control of target creature you control and target creature an opponent controls."