Name:Spell Rupture
ManaCost:1 U
Types:Instant
A:SP$ Counter | TargetType$ Spell | ValidTgts$ Card | UnlessCost$ X | UnlessPayer$ TargetedController | SpellDescription$ Counter target spell unless its controller pays {X}, where X is the greatest power among creatures you control.
SVar:X:Count$Valid Creature.YouCtrl$GreatestPower
Oracle:Counter target spell unless its controller pays {X}, where X is the greatest power among creatures you control.
