Is Unholy Officiant legal in Standard, Modern, and Commander?

Unholy Officiant is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

Unholy Officiant

Q: What type of card is Unholy Officiant?

Unholy Officiant is a Creature — Vampire Cleric. Its oracle text reads: "Vigilance {4}{W}: Put a +1/+1 counter on this creature. *"Is this twisted ceremony simply a mockery of the human rite, or has Olivia fallen for her own charade?" —Sorin Markov* Power/Toughness: 1/2"