Is Feed the Pack legal in Standard, Modern, and Commander?

Feed the Pack is legal in: Modern, Legacy, Vintage, Commander.

Feed the Pack

Q: What type of card is Feed the Pack?

Feed the Pack is an Enchantment. Its oracle text reads: "At the beginning of your end step, you may sacrifice a nontoken creature. If you do, create X 2/2 green Wolf creature tokens, where X is the sacrificed creature's toughness."

Enchantment

At the beginning of your end step, you may sacrifice a nontoken creature. If you do, create X 2/2 green Wolf creature tokens, where X is the sacrificed creature's toughness.

Set Dark Ascension

Rarity Rare

Mana Value 6

Artist Steve Prescott

Collector # 114

Scryfall