Name:Urge to Feed
ManaCost:B B
Types:Instant
A:SP$ Pump | Cost$ B B | ValidTgts$ Creature | TgtPrompt$ Select target creature | NumAtt$ -3 | NumDef$ -3 | IsCurse$ True | SubAbility$ GuestList | SpellDescription$ Target creature gets -3/-3 until end of turn. You may tap any number of untapped Vampire creatures you control. If you do, put a +1/+1 counter on each of those Vampires.
SVar:GuestList:DB$ ChooseCard | Defined$ You | MinAmount$ 0 | Amount$ AbleToFeedX | References$ AbleToFeedX | Choices$ Creature.Vampire+untapped+YouCtrl | ChoiceTitle$ Choose any number of untapped Vampire creature you control | ChoiceZone$ Battlefield | RememberChosen$ True | SubAbility$ VampiricUrge
SVar:VampiricUrge:DB$ Tap | Defined$ Remembered | SubAbility$ VampiricFeed
SVar:VampiricFeed:DB$ PutCounter | CounterType$ P1P1 | CounterNum$ 1 | Defined$ Remembered | SubAbility$ DBCleanup
SVar:DBCleanup:DB$ Cleanup | ClearRemembered$ True
SVar:AbleToFeedX:Count$Valid Creature.Vampire+YouCtrl
SVar:Picture:http://www.wizards.com/global/images/magic/general/urge_to_feed.jpg
Oracle:Target creature gets -3/-3 until end of turn. You may tap any number of untapped Vampire creatures you control. If you do, put a +1/+1 counter on each of those Vampires.