Arcane Amplifier (Civil War, Standard Card, #111) is an uncommon Talisman card with 0 attack and 0 defense.
Card Effect
Talisman: Magic attacks you play have a 50% chance to deal +1 damage.
Card Description
Oft-desired but hard to find, the rare "soul stone" crystals in Arcane Amplifiers give spellcasters the ability to channel a larger amount of magic than they normally would be able to on their own.