Is Biblioplex Assistant legal in Standard, Modern, and Commander?

Biblioplex Assistant is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

Biblioplex Assistant

Q: What type of card is Biblioplex Assistant?

Biblioplex Assistant is an Artifact Creature — Gargoyle. Its oracle text reads: "Flying When this creature enters, put up to one target instant or sorcery card from your graveyard on top of your library. *"I appreciate the help, and honestly, it's very entertaining." —Isabough of the Biblioplex* Power/Toughness: 2/1"