- Blade of Eternal Darkness
- Item Level 22
- Binds when picked up
- Unique
- Dagger
- One-Hand
- Speed 1.80
- 1 Damage
- (0.6 damage per second)
- +7 Intellect
- +2 Stamina
- +1 Haste
- +1 Versatility
- Equip: Chance on landing a direct damage spell to deal 91 Shadow damage and restore 91 mana to you.
- Durability 80 / 80
- Requires Level 14
- Sell Price: 1
60
44
Gnome wielding the Blade of Eternal Darkness
The Blade of Eternal Darkness has no specific class restriction, but it is aimed more towards spellcasting classes. If a character wields this dagger and casts a damaging spell on an enemy, there is a chance that the dagger will deal 91 Shadow damage to the target as well as restoring 91 mana to the wielder.
Source[]
This item drops from Princess Theradras, final boss of Maraudon.
Notes[]
Ability such as 
[Shadowform] and 
[Curse of the Elements], which increase overall Shadow damage, will also increase the damage done by the proc. The damage can also crit but has its own rate. The mana regenerated cannot be increased.
Non-Channeling AoE damage spells like 
[Shadowfury] can cause more than one proc at the same time (can proc once per each enemy hit), resulting in more damage done and mana returned by proc.
The effect is named Engulfing Shadows.
The blade's drop rate is estimated at 0.1%.
The dagger was changed in Patch 1.10.0. Previously, the proc was an "On Use" ability with a 1.5 second casts and a 30 second cooldown.
Patch changes[]
Patch 6.0.2 (2014-10-14): Stats squished. 
Patch 4.0.3a (2010-11-23): Item level reduced from 54 to 39. 
Patch 2.1.0 (2007-05-22): The tooltip has been adjusted to indicate it only works with direct damage spells. 
Patch 1.12.1 (2006-09-26): The Blade of Eternal Darkness will now only proc when damage is done. - Patch 1.12.0 (2006-08-22): The triggered effect from this weapon will no longer occur when the spell being cast has its effect broken by causing damage.
- Patch 1.10.0 (2006-03-28): The On Use ability on the Blade of Eternal Darkness has been changed to an On Equip triggered effect with a chance to occur on any damage spell.
- Patch 1.8.0 (2005-10-10): Blade of Eternal Darkness now has an appropriate minimum level.
- Patch 1.2.0 (2004-12-18): Added.
