Is Gnawing Crescendo legal in Standard, Modern, and Commander?

Gnawing Crescendo is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

Gnawing Crescendo

Q: What type of card is Gnawing Crescendo?

Gnawing Crescendo is an Instant. Its oracle text reads: "Creatures you control get +2/+0 until end of turn. Whenever a nontoken creature you control dies this turn, create a 1/1 black Rat creature token with "This token can't block." *Totentanz's song had no lyrics, but the rats understood it nonetheless. "You own this land," it said. "You deserve to feast."*"

Instant

Creatures you control get +2/+0 until end of turn. Whenever a nontoken creature you control dies this turn, create a 1/1 black Rat creature token with "This token can't block."

*Totentanz's song had no lyrics, but the rats understood it nonetheless. "You own this land," it said. "You deserve to feast."*

Set Wilds of Eldraine

Rarity Common

Mana Value 3

Artist Alexey Kruglov

Collector # 131

Scryfall