Spring Cleaning
Lorwyn — common
Instant
Spring Cleaning rulings:
2013-09-20: If you win the clash and the targeted enchantment is controlled by an opponent, it will be destroyed a second time if it’s still on the battlefield (for instance, if it somehow regenerated).
2007-10-01: If you win the clash, you destroy all enchantments all of your opponents control, not just enchantments controlled by the opponent you clashed with.