Argentum Armor
Commander 2014 — rare
Artifact — Equipment
Argentum Armor rulings:
2011-01-01: The second ability triggers and resolves during the declare attackers step. The target permanent will be destroyed before blockers are declared.
2011-01-01: You may target any permanent with the triggered ability, not just one controlled by the defending player. If no other player controls a permanent, you must target one of your own.