Heartfire [War of the Spark] Treefolk Warlock Set: Dominaria United Commander Type:

Set: Dominaria United Commander Type: Land Rarity: Uncommon Seaside Citadel enters the battlefield tapped

Set: Secret Lair Drop Series Type: Artifact — Equipment Rarity: Rare Cost: {1} Equipped creature gets +1/-1

Reverse Type: Token Creature — Kobold

and never dismiss what appears useless

When the Invasion Tree reached the Underworld

Heartfire [War of the Spark] Treefolk Warlock Set: Dominaria United Commander Type:Set: War of the Spark Type: Instant Rarity: Common Cost: {1}{R} As an additional cost to cast this spell, sacrifice a creature or planeswalker. Heartfire deals 4 damage to any target. The mage looked within and realized there was still one piece of fuel to burn.