Bolas's Citadel [War of the Spark Prerelease Promos] DTD009 Battle Cannon — When Chaos

Battle Cannon — When Chaos Defiler enters the battlefield or dies

Set: Heavy Hitters Finish: Rainbow Foil Type: Action Subtype: Attack Rarity: Majestic Class: Generic Cost: 2 Power: 4 Instant -- Discard this: If an action card effect would create 1 or more tokens this turn

Set: HeartGold & SoulSilver: Unleashed Type: Supporter Rarity: Promo

Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost

Set: Sun & Moon: Team Up Type: Metal Rarity: Ultra Rare Retreat cost: Colorless

Bolas's Citadel [War of the Spark Prerelease Promos] DTD009 Battle Cannon — When ChaosSet: War of the Spark Prerelease Promos Type: Legendary Artifact Rarity: Rare Cost: {3}{B}{B}{B} You may look at the top card of your library any time. You may play lands and cast spells from the top of your library. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost. {T}, Sacrifice ten nonland permanents: Each opponent loses 10 life.