This article or section contains lore taken from Warcraft III: Reign of Chaos, Warcraft III: The Frozen Throne, the manuals, and official bonus maps.

Animate Dead is a death knight ability available in Warcraft III and Warcraft III: The Frozen Throne. It is the ultimate death knight ability and is only attainable at level 6. This ability raises 6 dead units in an area to fight for the death knight. Animated units are invulnerable.

Level: N/A
Duration: 40 sec
Cooldown: 180 sec
Mana Cost: 175
Range: 40
Area of Effect: 90
Allowed Targets: Ground, Dead
Effect: Raises dead units
Hero Level Required: 6

From the Blizzard Warcraft III Guide

It is important to pick the right time to cast Animate Dead. The best time to use it is when there are at least 6 dead units that are very powerful such as Knights, Tauren, Abominations, Huntresses, or Bears. Another possible option is to collect powerful Creeps in a Meat Wagon then unload them in a battle and cast Animate Dead.
Up to 6 units can be resurrected. The spell will choose the most powerful corpses to resurrect if there are more than 6.
Animate Dead will raise dead enemy units or neutral units as well as your own.
Units raised by Animate Dead are invulnerable to dispels as well as damage.
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