Name:Culling Scales
ManaCost:3
Types:Artifact
T:Mode$ Phase | Phase$ Upkeep | ValidPlayer$ You | TriggerZones$ Battlefield | Execute$ TrigDestroy | TriggerDescription$ 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.)
SVar:TrigDestroy:AB$Destroy | Cost$ 0 | ValidTgts$ Permanent.nonLand+lowestCMC | TgtPrompt$ Select target nonland permanent with the lowest converted mana cost.
SVar:RemAIDeck:True
SVar:Picture:http://www.wizards.com/global/images/magic/general/culling_scales.jpg
Oracle: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.)