Is Drove of Elves legal in Standard, Modern, and Commander?

Drove of Elves is legal in: Modern, Legacy, Vintage, Commander.

Drove of Elves

Q: What type of card is Drove of Elves?

Drove of Elves is a Creature — Elf. Its oracle text reads: "Hexproof Drove of Elves's power and toughness are each equal to the number of green permanents you control. *"The light of beauty protects our journeys through darkness."* Power/Toughness: */*"