Is Venerated Rotpriest legal in Standard, Modern, and Commander?

Venerated Rotpriest is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Venerated Rotpriest

Q: What type of card is Venerated Rotpriest?

Venerated Rotpriest is a Creature — Phyrexian Druid. Its oracle text reads: "Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) Whenever a creature you control becomes the target of a spell, target opponent gets a poison counter."