Name:Sivvi's Ruse
ManaCost:2 W W
Types:Instant
S:Mode$ AlternativeCost | ValidSA$ Spell | ValidCard$ Card.Self | ValidPlayer$ You | Cost$ 0 | EffectZone$ All | CheckSVar$ X | CheckSecondSVar$ Y | Description$ If an opponent controls a Mountain and you control a Plains, you may cast this spell without paying its mana cost.
A:SP$ Effect | ReplacementEffects$ RPrevent | SpellDescription$ Prevent all damage that would be dealt this turn to creatures you control.
SVar:RPrevent:Event$ DamageDone | Prevent$ True | ActiveZones$ Command | ValidTarget$ Creature.YouCtrl | Description$ Prevent all damage that would be dealt this turn to creatures you control.
SVar:X:Count$Valid Mountain.OppCtrl
SVar:Y:Count$Valid Plains.YouCtrl
AI:RemoveDeck:All
Oracle:If an opponent controls a Mountain and you control a Plains, you may cast this spell without paying its mana cost.\nPrevent all damage that would be dealt this turn to creatures you control.
