Is Ravenous Sailback legal in Standard, Modern, and Commander?

Ravenous Sailback is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Ravenous Sailback

Q: What type of card is Ravenous Sailback?

Ravenous Sailback is a Creature — Dinosaur. Its oracle text reads: "When this creature enters, choose one — • This creature gains haste until end of turn. • Destroy target artifact or enchantment. *Converter beasts were sent to ensnare as many of Ixalan's dinosaurs as possible. Many of them were converted themselves—into snacks.* Power/Toughness: 3/4"