Bolas's Citadel [War of the Spark Prerelease Promos] Magic 2010 Chains of leaping fire and

Chains of leaping fire and sizzling lightning laid waste the artificers' handiwork

Put that card into your hand and exile the other with a silver counter on it

{T}: Destroy target black creature

Set: Amonkhet Invocations Type: Sorcery Rarity: Mythic Cost: {2}{B}{B} Destroy all creatures

They enshrined it

Bolas's Citadel [War of the Spark Prerelease Promos] Magic 2010 Chains of leaping fire andSet: 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.