Is The Blackstaff of Waterdeep legal in Standard, Modern, and Commander?

The Blackstaff of Waterdeep is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

What type of card is The Blackstaff of Waterdeep?

The Blackstaff of Waterdeep is a Legendary Artifact. Its oracle text reads: "You may choose not to untap The Blackstaff of Waterdeep during your untap step. Animate Walking Statue — {1}{U}, {T}: Another target nontoken artifact you control becomes a 4/4 artifact creature for as long as The Blackstaff of Waterdeep remains tapped. Activate only as a sorcery."

The Blackstaff of Waterdeep

Legendary Artifact

You may choose not to untap The Blackstaff of Waterdeep during your untap step.

Animate Walking Statue — , : Another target nontoken artifact you control becomes a 4/4 artifact creature for as long as The Blackstaff of Waterdeep remains tapped. Activate only as a sorcery.