The Blackstaff of Waterdeep
From Adventures in the Forgotten Realms set
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.