Is Shadowborn Apostle legal in Standard, Modern, and Commander?

Shadowborn Apostle is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

What type of card is Shadowborn Apostle?

Shadowborn Apostle is a Creature — Human Cleric. Its oracle text reads: "A deck can have any number of cards named Shadowborn Apostle. {B}, Sacrifice six creatures named Shadowborn Apostle: Search your library for a Demon creature card, put it onto the battlefield, then shuffle."