Culling Scales [Mirrodin]

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Set Name:	Mirrodin
Rarity, #:	Rare, #160/306
Card Type:	Artifact
P / T:	N/A
Description:	At the beginning of your upkeep, destroy target nonland permanent with the lowest converted mana cost. (If two or more permanents are tied for lowest cost, target any one of them.)
Flavor:	N/A