Bolas's Citadel [War of the Spark] Ox Set: Beta Edition Type: Enchantment

Set: Beta Edition Type: Enchantment Rarity: Uncommon Cost: {G}{G} {G}{G}: Counter target black spell

among any number of targets

Set: Unlimited Edition Type: Artifact Rarity: Rare Cost: {0} {T}: Add {R}

Set: From the Vault: Exiled Type: Artifact — Equipment Rarity: Mythic Cost: {1} Equipped creature gets +1/-1

At the beginning of each end step

Bolas's Citadel [War of the Spark] Ox Set: Beta Edition Type: EnchantmentSet: War of the Spark 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.