Name:Prismatic Circle
ManaCost:2 W
Types:Enchantment
K:Cumulative upkeep:1
K:ETBReplacement:Other:ChooseColor
SVar:ChooseColor:DB$ ChooseColor | Defined$ You | SpellDescription$ As CARDNAME enters the battlefield, choose a color. | AILogic$ MostProminentInHumanDeck
A:AB$ ChooseSource | Cost$ 1 | Choices$ Card.ChosenColorSource | AILogic$ NeedsPrevention | SubAbility$ DBEffect | SpellDescription$ The next time a source of your choice of the chosen color would deal damage to you this turn, prevent that damage.
SVar:DBEffect:DB$ Effect | ReplacementEffects$ RPreventNextFromSource | SVars$ RPreventNextFromSource,ExileEffect | SubAbility$ DBCleanup | ConditionDefined$ ChosenCard | ConditionPresent$ Card | ConditionCompare$ GE1
SVar:RPreventNextFromSource:Event$ DamageDone | ValidSource$ Card.ChosenCard+ChosenColorSource | ValidTarget$ You | ReplaceWith$ ExileEffect | PreventionEffect$ True | Description$ The next time the chosen source deals damage to you, prevent that damage.
SVar:ExileEffect:DB$ ChangeZone | Defined$ Self | Origin$ Command | Destination$ Exile
SVar:DBCleanup:DB$ Cleanup | ClearChosenCard$ True
SVar:RemAIDeck:True
SVar:Picture:http://www.wizards.com/global/images/magic/general/prismatic_circle.jpg
Oracle:Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)\nAs Prismatic Circle enters the battlefield, choose a color.\n{1}: The next time a source of your choice of the chosen color would deal damage to you this turn, prevent that damage.