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 mana value. (If two or more permanents are tied for lowest, target any one of them.)
SVar:TrigDestroy:DB$ Destroy | ValidTgts$ Permanent.nonLand+lowestCMC | TgtPrompt$ Select target nonland permanent with the lowest mana value.
AI:RemoveDeck:All
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 mana value. (If two or more permanents are tied for lowest, target any one of them.)