Is Servant of Tymaret legal in Standard, Modern, and Commander?

Servant of Tymaret is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper.

Servant of Tymaret

Q: What type of card is Servant of Tymaret?

Servant of Tymaret is a Creature — Zombie. Its oracle text reads: "Inspired — Whenever this creature becomes untapped, each opponent loses 1 life. You gain life equal to the life lost this way. {2}{B}: Regenerate this creature. *Life is most precious to those who have already lost it.* Power/Toughness: 1/3"