Name:Greater Good
ManaCost:2 G G
Types:Enchantment
A:AB$ Draw | Cost$ Sac<1/Creature> | NumCards$ X | SubAbility$ DB | References$ X | SpellDescription$ Draw cards equal to the sacrificed creature's power, then discard three cards.
SVar:DB:DB$Discard | NumCards$ 3 | Mode$ TgtChoose
SVar:X:Sacrificed$CardPower
SVar:RemAIDeck:True
SVar:Picture:http://www.wizards.com/global/images/magic/general/greater_good.jpg
Oracle:Sacrifice a creature: Draw cards equal to the sacrificed creature's power, then discard three cards.