Name:Culling the Weak
ManaCost:B
Types:Instant
A:SP$ Mana | Cost$ B Sac<1/Creature> | Produced$ B | Amount$ 4 | AILogic$ ManaRitual | AINoRecursiveCheck$ True | SpellDescription$ Add {B}{B}{B}{B}.
SVar:AIPreference:SacCost$Creature.cmcLE2
#TODO: Improve the mana ritual AI such that it does not "misfire" from time to time, and only then remove RemAIDeck here, because otherwise sometimes the AI will just sac the creature and not cast anything.
SVar:RemAIDeck:True
SVar:Picture:http://www.wizards.com/global/images/magic/general/culling_the_weak.jpg
Oracle:As an additional cost to cast Culling the Weak, sacrifice a creature.\nAdd {B}{B}{B}{B}.