Name:Foundry Helix
ManaCost:1 R W
Types:Instant
A:SP$ DealDamage | Cost$ 1 R W Sac<1/Permanent> | ValidTgts$ Creature,Planeswalker,Player | TgtPrompt$ Select any target | NumDmg$ 4 | SubAbility$ DBGainLife | SpellDescription$ CARDNAME deals 4 damage to any target. If the sacrificed permanent was an artifact, you gain 4 life.
SVar:DBGainLife:DB$ GainLife | ConditionCheckSVar$ X | ConditionSVarCompare$ GE1 | LifeAmount$ 4
SVar:X:Sacrificed$Valid Artifact
DeckHints:Type$Artifact
DeckHas:Ability$LifeGain
Oracle:As an additional cost to cast this spell, sacrifice a permanent.\nFoundry Helix deals 4 damage to any target. If the sacrificed permanent was an artifact, you gain 4 life.