Is Ravenous Gigantotherium legal in Standard, Modern, and Commander?

Ravenous Gigantotherium is legal in: Legacy, Vintage, Commander.

Ravenous Gigantotherium

Q: What type of card is Ravenous Gigantotherium?

Ravenous Gigantotherium is a Creature — Beast. Its oracle text reads: "Devour 3 (As this creature enters, you may sacrifice any number of creatures. It enters with three times that many +1/+1 counters on it.) When this creature enters, it deals X damage divided as you choose among up to X target creatures, where X is its power. Each of those creatures deals damage equal to its power to this creature. Power/Toughness: 3/3"

Creature — Beast

Devour 3 (As this creature enters, you may sacrifice any number of creatures. It enters with three times that many +1/+1 counters on it.)

When this creature enters, it deals X damage divided as you choose among up to X target creatures, where X is its power. Each of those creatures deals damage equal to its power to this creature.

Power/Toughness: 3/3

Set Commander 2020

Rarity Rare

Mana Value 7

Artist Bartłomiej Gaweł

Collector # 63

Scryfall