Bolas's Citadel [War of the Spark Prerelease Promos] Commander 2015 where X is the greatest

where X is the greatest power among creatures you control

"Hmmm—midnight snack

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

weakest at its foundation

Bolas's Citadel [War of the Spark Prerelease Promos] Commander 2015 where X is the greatestSet: 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 converted mana cost rather than pay its mana cost. {T}, Sacrifice ten nonland permanents: Each opponent loses 10 life.