Is Soulcoil Viper legal in Standard, Modern, and Commander?

Soulcoil Viper is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Soulcoil Viper

Q: What type of card is Soulcoil Viper?

Soulcoil Viper is a Creature — Snake. Its oracle text reads: "{B}, {T}, Sacrifice this creature: Return target creature card from your graveyard to the battlefield with a finality counter on it. Activate only as a sorcery. (If a creature with a finality counter on it would die, exile it instead.) *"As the snake sheds its skin to be born anew, we cast off death to rise as servants of Aclazotz." —Vito, Church of Dusk heretic* Power/Toughness: 2/3"

Creature — Snake

, , Sacrifice this creature: Return target creature card from your graveyard to the battlefield with a finality counter on it. Activate only as a sorcery. (If a creature with a finality counter on it would die, exile it instead.)