Relic Ward
Visions — uncommon
Enchantment — Aura
Relic Ward rulings:
2009-10-01: The sacrifice occurs only if you cast it using its own ability. If you cast it using some other effect (for instance, if it gained flash from Vedalken Orrery), then it won’t be sacrificed.
2005-08-01: Does not destroy Auras which are on the artifact, and it does not prevent Auras from being moved onto the artifact.