Bolas's Citadel [War of the Spark Prerelease Promos] Metal[x2] this face-up card is unaffected

this face-up card is unaffected by the activated effects of your opponent's monsters

how the nerves are arrayed

If one or more creature cards were put into that graveyard this way

your opponent cannot activate any Spell/Trap Cards until the end of the Damage Step

Bolas's Citadel [War of the Spark Prerelease Promos] Metal[x2] this face-up card is unaffectedSet: 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.