Energy Shield protects Mana instead of Life
50% less Energy Shield Recharge Rate 
Energy shield protects mana instead of life. All modifiers to energy shield apply normally but it is not affected by modifiers to mana or mana regeneration. Energy shield recharge and recovery through Zealot's Oath or Ghost Reaver function normally. Any reductions to mana (e.g. skill costs) will instead reduce energy shield by the same amount, and any reduction to energy shield will interrupt its recharging and reset its recharge delay.
Eldritch Battery also causes energy shields to no longer grant a chance to avoid stun.
Eldritch Battery is a standalone keystone located on the upper right edge of the skill tree.
|Class||Distance from start|
|The Devouring DiademThe Devouring Diadem|
Necromancer CircletQuality: +20%
Energy Shield: (156-176)Requires Level 54, 112 Int+1 to Level of Socketed Gems
Socketed Gems have 20% reduced Mana Reservation
Trigger Level 15 Feast of Flesh every 5 seconds
(180-220)% increased Energy Shield
10% chance for Energy Shield Recharge to start when you use a Skill
<One Veiled Mod>The spirit hungers for the flesh.Take this item to Jun Ortoi to have her Unveil it.