Is Faceless Butcher legal in Standard, Modern, and Commander?

Faceless Butcher is legal in: Modern, Legacy, Vintage, Commander, Pauper.

Faceless Butcher

Q: What type of card is Faceless Butcher?

Faceless Butcher is a Creature — Nightmare Horror. Its oracle text reads: "When this creature enters, exile another target creature. When this creature leaves the battlefield, return the exiled card to the battlefield under its owner's control. Power/Toughness: 2/3"