Urth, Purifying Elemental/Rulings


 * Q: My opponent attacked my shields with Urth, Purifying Elemental. The first shield he broke was a shield trigger, Spiral Gate. I used it to return Urth, Purifying Elemental to my opponent's hand. Since Urth, Purifying Elemental left the battle zone, does it not break a second shield?
 * A: Double breaker is a single attack that breaks two shields, so as long as it's not blocked, it always breaks 2 shields. Even if it leaves the battle zone because of a shield trigger on the first shield that gets broken, it still breaks a second shield afterwards.