Name:Impulsive Maneuvers
ManaCost:2 R R
Types:Enchantment
T:Mode$ Attacks | ValidCard$ Creature | Execute$ CoinFlip | TriggerZones$ Battlefield | TriggerDescription$ Whenever a creature attacks, flip a coin. If you win the flip, the next time that creature would deal combat damage this turn, it deals double that damage instead. If you lose the flip, the next time that creature would deal combat damage this turn, prevent that damage.
SVar:CoinFlip:DB$ FlipACoin | WinSubAbility$ CreateWinEffect | LoseSubAbility$ CreateLossEffect
# Winning Effect
SVar:CreateWinEffect:DB$ Effect | Name$ Impulsive Maneuvers Win Effect | ReplacementEffects$ EventWinDamageDone | SVars$ DmgTwice,WinX,ExileEffect | References$ EventWinDamageDone,DmgTwice,WinX | ImprintCards$ TriggeredAttacker
SVar:EventWinDamageDone:Event$ DamageDone | ValidSource$ Card.IsImprinted | ReplaceWith$ DmgTwice | Description$ The next time creature would deal combat damage this turn, it deals double that damage instead.
SVar:DmgTwice:DB$ ReplaceEffect | VarName$ DamageAmount | VarValue$ WinX | References$ WinX | SubAbility$ ExileEffect
SVar:WinX:ReplaceCount$DamageAmount/Twice
# Losing Effect
SVar:CreateLossEffect:DB$ Effect | Name$ Impulsive Maneuvers Loss Effect | ReplacementEffects$ EventLossDamageDone | SVars$ ExileEffect | References$ EventLossDamageDone,ExileEffect | ImprintCards$ TriggeredAttacker
SVar:EventLossDamageDone:Event$ DamageDone | ValidSource$ Card.IsImprinted | ReplaceWith$ ExileEffect | PreventionEffect$ True | IsCombat$ True | Description$ The next time creature would deal combat damage this turn, prevent that damage.
SVar:ExileEffect:DB$ ChangeZone | Defined$ Self | Origin$ Command | Destination$ Exile
SVar:RemAIDeck:True
SVar:Picture:http://www.wizards.com/global/images/magic/general/impulsive_maneuvers.jpg
Oracle:Whenever a creature attacks, flip a coin. If you win the flip, the next time that creature would deal combat damage this turn, it deals double that damage instead. If you lose the flip, the next time that creature would deal combat damage this turn, prevent that damage.