Heartfire 
Instant
As an additional cost to cast this spell, sacrifice a creature or planeswalker. Heartfire deals 4 damage to any target.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL
Instant
As an additional cost to cast this spell, sacrifice a creature or planeswalker. Heartfire deals 4 damage to any target.