Counterbalance [Secret Lair Drop Series] HarperPrism Book Promos If that card's converted mana

If that card's converted mana cost is less than or equal to the sacrificed artifact's converted mana cost

Set: EX: FireRed & LeafGreen Type: Grass Rarity: Holo Rare Retreat cost: Colorless

that spell deals damage to each opponent equal to the number of instant and sorcery spells you've cast this turn

Set: Secret Lair Drop Series Type: Instant Rarity: Rare Cost: {R} Lightning Bolt deals 3 damage to any target

Set: Secret Lair Drop Series Type: Instant Rarity: Rare Cost: {1}{R} Destroy target artifact

Counterbalance [Secret Lair Drop Series] HarperPrism Book Promos If that card's converted manaSet: Secret Lair Drop Series Type: Enchantment Rarity: Rare Cost: {U}{U} Whenever an opponent casts a spell, you may reveal the top card of your library. If you do, counter that spell if it has the same mana value as the revealed card.