Is Adipose Offspring legal in Standard, Modern, and Commander?

Adipose Offspring is legal in: Legacy, Vintage, Commander.

Adipose Offspring

Q: What type of card is Adipose Offspring?

Adipose Offspring is a Creature — Alien. Its oracle text reads: "Emerge {5}{W} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.) When this creature enters, create a 2/2 white Alien creature token. If this creature's emerge cost was paid, instead create X of those tokens, where X is the sacrificed creature's toughness. Power/Toughness: 2/2"

Creature — Alien

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.)

When this creature enters, create a 2/2 white Alien creature token. If this creature's emerge cost was paid, instead create X of those tokens, where X is the sacrificed creature's toughness.

Power/Toughness: 2/2

Set Doctor Who

Rarity Rare

Mana Value 4

Artist John Tedrick

Collector # 10

Scryfall