Name:Spontaneous Mutation
ManaCost:U
Types:Enchantment Aura
K:Flash
K:Enchant creature
A:SP$ Attach | Cost$ U | ValidTgts$ Creature | AILogic$ Curse
S:Mode$ Continuous | Affected$ Creature.EnchantedBy | AddPower$ -X | Description$ Enchanted creature gets -X/-0, where X is the number of cards in your graveyard.
SVar:X:Count$InYourYard
SVar:Picture:http://www.wizards.com/global/images/magic/general/spontaneous_mutation.jpg
Oracle:Flash (You may cast this spell any time you could cast an instant.)\nEnchant creature\nEnchanted creature gets -X/-0, where X is the number of cards in your graveyard.