Punishing Fire [Duel Decks: Knights vs. Dragons] Planechase Anthology these wurms were the bane

these wurms were the bane of all Kjeldorans

Set: Aether Revolt Type: Instant Rarity: Rare Cost: {X}{U}{U}{U} Improvise (Your artifacts can help cast this spell

When Cathedral Membrane dies during combat

Set: Eighth Edition Type: Enchantment Rarity: Rare Cost: {1}{W} Wall creatures can attack as though they didn't have defender

Punishing Fire [Duel Decks: Knights vs. Dragons] Planechase Anthology these wurms were the baneSet: Duel Decks: Knights vs. Dragons Type: Instant Rarity: Uncommon Cost: {1}{R} Punishing Fire deals 2 damage to any target. Whenever an opponent gains life, you may pay {R}. If you do, return Punishing Fire from your graveyard to your hand.