Breath of Malfegor [IDW Comics 2012] Tenth Edition Whenever a source an opponent

Whenever a source an opponent controls deals damage to you or a permanent you control

Set: Commander Anthology Volume II Type: Artifact Creature — Phyrexian Wurm Rarity: Mythic Cost: {6} Deathtouch

As long as Wonder is in your graveyard and you control an Island

Set: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {3} Whenever you activate an ability

Set: Mercadian Masques Type: Creature — Spirit Rarity: Rare Cost: {1}{B}{B} At the beginning of your upkeep

Breath of Malfegor [IDW Comics 2012] Tenth Edition Whenever a source an opponentSet: IDW Comics 2012 Type: Instant Rarity: Rare Cost: {3}{B}{R} Breath of Malfegor deals 5 damage to each opponent. The draconic demon loomed over Dack, and he suddenly sensed he wasn't the only Planeswalker that Malfegor had encountered.