Is Tenured Oilcaster legal in Standard, Modern, and Commander?

Tenured Oilcaster is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

Tenured Oilcaster

Q: What type of card is Tenured Oilcaster?

Tenured Oilcaster is a Creature — Phyrexian Wizard. Its oracle text reads: "Menace (This creature can't be blocked except by two or more creatures.) This creature gets +3/+0 as long as an opponent has eight or more cards in their graveyard. Whenever this creature attacks or blocks, each player mills a card."