Is Doomed Necromancer legal in Standard, Modern, and Commander?

Doomed Necromancer is legal in: Modern, Legacy, Vintage, Commander, Historic.

Doomed Necromancer

Q: What type of card is Doomed Necromancer?

Doomed Necromancer is a Creature — Human Cleric Mercenary. Its oracle text reads: "{B}, {T}, Sacrifice this creature: Return target creature card from your graveyard to the battlefield. *Many necromancers share the same last words—the ones that conclude the undeath ritual.* Power/Toughness: 2/2"