Name:Altar of Bone
ManaCost:G W
Types:Sorcery
A:SP$ ChangeZone | Cost$ G W Sac<1/Creature> | Origin$ Library | Destination$ Hand | ChangeType$ Creature | ChangeNum$ 1 | AILogic$ SacAndUpgrade+SacWorst | SpellDescription$ Search your library for a creature card, reveal that card, and put it into your hand. Then shuffle your library.
SVar:AIPreference:SacCost$Creature
SVar:Picture:http://www.wizards.com/global/images/magic/general/altar_of_bone.jpg
Oracle:As an additional cost to cast Altar of Bone, sacrifice a creature.\nSearch your library for a creature card, reveal that card, and put it into your hand. Then shuffle your library.