Name:Circle of Despair
ManaCost:1 W B
Types:Enchantment
A:AB$ ChooseSource | Cost$ 1 Sac<1/Creature> | Choices$ Card | AILogic$ NeedsPrevention | SubAbility$ DBEffect | SpellDescription$ The next time a source of your choice would deal damage to target creature or player this turn, prevent that damage.
SVar:DBEffect:DB$ Effect | ValidTgts$ Creature,Player | TgtPrompt$ Select target creature or player to prevent damage to | Triggers$ OutOfSight | ReplacementEffects$ RPreventNextFromSource | RememberObjects$ Targeted | SVars$ RPreventNextFromSource,ExileEffect,OutOfSight | SubAbility$ DBCleanup | ConditionDefined$ ChosenCard | ConditionPresent$ Card | ConditionCompare$ GE1
SVar:OutOfSight:Mode$ ChangesZone | TriggerZones$ Command | Origin$ Battlefield | Destination$ Any | ValidCard$ Card.IsRemembered | Execute$ ExileEffect | Static$ True
SVar:RPreventNextFromSource:Event$ DamageDone | ValidSource$ Card.ChosenCard | ValidTarget$ Card.IsRemembered,Player.IsRemembered | ReplaceWith$ ExileEffect | PreventionEffect$ True | Description$ The next time the chosen source deals damage to the targeted creature or player, prevent that damage.
SVar:ExileEffect:DB$ ChangeZone | Defined$ Self | Origin$ Command | Destination$ Exile
SVar:DBCleanup:DB$ Cleanup | ClearChosenCard$ True
SVar:NonStackingEffect:True
SVar:AIPreference:SacCost$Creature.namedBrood of Cockroaches,Creature.token
SVar:RemAIDeck:True
SVar:Picture:http://www.wizards.com/global/images/magic/general/circle_of_despair.jpg
Oracle:{1}, Sacrifice a creature: The next time a source of your choice would deal damage to target creature or player this turn, prevent that damage.