Location: Sneevil Smith
Price: N/A (Reward from the 'Chaos Forge Enchantment' quest)
Sellback: 0 AC
Rarity: Promotional Item Rarity
Base Damage: 27-33
Description: With this lamp you only get one wish, and the wish has to be murder. (Gives 3% more damage against Chaos AND 3% more Class Points.)
Note: Also see In-Djinn-ious Blade.
Thanks to Tendou no Mazo.