Karmic Justice
Whenever a spell or ability an opponent controls destroys a noncreature 
permanant you cantrol, you may destroy target permanant that player controls.
Odyssey, Rare

    This card should be sideboarded for most white decks. with red and its 
many forms of stone rain this card will shut ponza type decks down which a 
liable to become prominant.
    It also has a stall incentive. just like standstill a player will try to 
find a way around this card and the only real way is to take one permenant 
out at the price of one or destroy the enchantment. The last time i checked 
red decks didn't have many ways of getting rid of enchantments.
    White weenie seems to be an extremely viable deck in this new format 
because of Divine Sacrament and Glorious Anthem. All of the nomads seem to 
add to the strength of white, especially when splashed with blue or green.