Crown of Empires
Magic 2012 — uncommon
Artifact
Crown of Empires rulings:
2011-09-22: Whether or not you control the correct artifacts is determined when the ability resolves.
2011-09-22: If any of the named cards stops being an artifact, it won’t be considered by these abilities.
2011-09-22: If you control artifacts named Scepter of Empires and Throne of Empires, the targeted creature won’t be tapped. You’ll just gain control of it.