The Eldritch Battery mod has the same effect as the keystone, Eldritch Battery. Taking the keystone in addition to equipping this item will impart no additional benefit.
Item acquisition
The Devouring Diadem has restrictions on where or how it can drop. It cannot be chanced.
Monster restrictions
This item can be acquired from the following monsters:
Necromancer CircletNecromancer CircletEnergy Shield: (55-64)Requires Level 54, 112 Int
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