Is Lutri, the Spellchaser legal in Standard, Modern, and Commander?

Lutri, the Spellchaser is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Lutri, the Spellchaser

Q: What type of card is Lutri, the Spellchaser?

Lutri, the Spellchaser is a Legendary Creature — Elemental Otter. Its oracle text reads: "Companion — Each nonland card in your starting deck has a different name. (If this card is your chosen companion, you may put it into your hand from outside the game for {3} as a sorcery.) Flash When Lutri enters, if you cast it, copy target instant or sorcery spell you control. You may choose new targets for the copy. Power/Toughness: 3/2"

Legendary Creature — Elemental Otter

Companion — Each nonland card in your starting deck has a different name. (If this card is your chosen companion, you may put it into your hand from outside the game for as a sorcery.)