Is The Ooze legal in Standard, Modern, and Commander?

The Ooze is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Historic.

The Ooze

Q: What type of card is The Ooze?

The Ooze is a Legendary Artifact. Its oracle text reads: "Whenever a creature you control with a +1/+1 counter on it leaves the battlefield, create a Mutagen token for each +1/+1 counter on it. (A Mutagen token is an artifact with "{1}, {T}, Sacrifice this token: Put a +1/+1 counter on target creature. Activate only as a sorcery.") {T}: Exile target card from a graveyard. Create a Mutagen token."

Legendary Artifact

Whenever a creature you control with a +1/+1 counter on it leaves the battlefield, create a Mutagen token for each +1/+1 counter on it. (A Mutagen token is an artifact with ", , Sacrifice this token: Put a +1/+1 counter on target creature. Activate only as a sorcery.")