Is Jawbone Duelist legal in Standard, Modern, and Commander?

Jawbone Duelist is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Jawbone Duelist

Q: What type of card is Jawbone Duelist?

Jawbone Duelist is a Creature — Phyrexian Soldier. Its oracle text reads: "Double strike Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) *"I have room for a few more teeth in my collection. Who's next?"* Power/Toughness: 1/1"