Is Infernal Caretaker legal in Standard, Modern, and Commander?

Infernal Caretaker is legal in: Legacy, Vintage, Commander, Pauper.

What type of card is Infernal Caretaker?

Infernal Caretaker is a Creature — Human Cleric. Its oracle text reads: "Morph {3}{B} (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, return all Zombie cards from all graveyards to their owners' hands."