Way to be a d!ck, okay go to aqw wiki dot. Best resource site, look up undead energy and there should be definition or info of it.
This is the
spirit orb
Location: Light Merge - Necropolis
Price: N/A
Reward from the following quests:
Bust some Dust
Essential Essence
Finding Fragments with Blinding Blade
Finding Fragments with Blinding Broadsword
Ultimate Weapon Kit Construction
Merge the following items:
Undead Energy x50
Sellback: 0 Gold
Type: Inventory
Description: The Undead are not alive, but are not death, either. The Undead still have a spirit, and that spirit is trapped within Spirit Orb. If you can gather enough Spirit Orbs, then you might be able to forge an item of "Blinding Light".
Notes:
Used in:
'A Loyal Follower' quest.
'Almighty Aluminum Enchantment' quest.
'Blessed Barium Enchantment' quest.
'Celestial Copper Enchantment' quest.
'Glorious Gold Enchantment' quest.
'Immortal Iron Enchantment' quest.
'Pious Platinum Enchantment' quest.
'Sanctified Silver Enchantment' quest.
'The Blinding Light of Destiny' quest.
Used to merge Loyal Spirit Orb.
Used to merge items in the Light Merge shop.
Stacks to 100,000.
Thanks to L0re and Tendou no Mazo.
- Searched on Wiki

Originally Posted by
Jay777
Have you try'd Google? Or you would've been already done and do it yourself!