Name:Spellbound Dragon
ManaCost:3 U R
Types:Creature Dragon
PT:3/5
K:Flying
T:Mode$ Attacks | ValidCard$ Card.Self | Execute$ TrigDraw | TriggerZones$ Battlefield | TriggerDescription$ Whenever CARDNAME attacks, draw a card, then discard a card. CARDNAME gets +X/+0 until end of turn, where X is the discarded card's converted mana cost.
SVar:TrigDraw:AB$ Draw | Cost$ 0 | NumCards$ 1 | SubAbility$ DBDiscard
SVar:DBDiscard:DB$ Discard | NumCards$ 1 | Mode$ TgtChoose | RememberDiscarded$ True | SubAbility$ DBPump
SVar:DBPump:DB$ Pump | NumAtt$ X | SubAbility$ DBCleanup
SVar:DBCleanup:DB$ Cleanup | ClearRemembered$ True
SVar:X:Remembered$CardManaCost
SVar:Picture:http://www.wizards.com/global/images/magic/general/spellbound_dragon.jpg
Oracle:Flying\nWhenever Spellbound Dragon attacks, draw a card, then discard a card. Spellbound Dragon gets +X/+0 until end of turn, where X is the discarded card's converted mana cost.