Is Boneknitter legal in Standard, Modern, and Commander?

Boneknitter is legal in: Legacy, Vintage, Commander.

What type of card is Boneknitter?

Boneknitter is a Creature — Zombie Cleric. Its oracle text reads: "{1}{B}: Regenerate target Zombie. Morph {2}{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.) *Nothing comes together as easily as it comes apart.* Power/Toughness: 1/1"