Is Gwaihir, Greatest of the Eagles legal in Standard, Modern, and Commander?

Gwaihir, Greatest of the Eagles is legal in: Legacy, Vintage, Commander.

Gwaihir, Greatest of the Eagles

Q: What type of card is Gwaihir, Greatest of the Eagles?

Gwaihir, Greatest of the Eagles is a Legendary Creature — Bird Noble. Its oracle text reads: "Flying Whenever Gwaihir attacks, target attacking creature gains flying until end of turn. At the beginning of each end step, if you gained 3 or more life this turn, create a 3/3 white Bird creature token with flying and "Whenever this token attacks, target attacking creature gains flying until end of turn.""

Legendary Creature — Bird Noble

Flying

Whenever Gwaihir attacks, target attacking creature gains flying until end of turn.

At the beginning of each end step, if you gained 3 or more life this turn, create a 3/3 white Bird creature token with flying and "Whenever this token attacks, target attacking creature gains flying until end of turn."

Set Tales of Middle-earth Commander

Rarity Rare

Mana Value 5

Artist Jesper Ejsing

Collector # 15

Scryfall Gatherer