Esadora's Overflowing Cameo is a Unique Amulet. It can only be used by Sorcerers.
Effect
Crackling Energy now gains 10% damage for every level in Shock Skills you have equipped and enemies hit have a 10% chance to refund a charge. Upon reaching maximum Crackling Energy, you rapidly unleash all charges on the closest enemy to you dealing [40 - 80]% increased damage. You cannot gain charges from hits while rapidly discharging.
How to get Esadora's Overflowing Cameo
You can farm this unique from Lord Zir
The only thing more potent than Esadora's magic was her endless hatred of humanity. As she lay dying, the pale amulet around her neck drank in both.