Armor and Attack types

Units have Armor and Attack types that modify the damage they deal/take against other units.

For more information read: Damage Calculation

Attack types[edit]

Normal[edit]

Mainly used by melee or short ranged units. Effective against most ground ranged units.
Examples: Knights, Huntresses

Piercing[edit]

Primarily used by ranged attackers, ground, air, or structure. Effective against air units and spellcasters.
Examples: Crypt Fiends, Hippogryph Riders

Magic[edit]

Primarily used by spellcasters, but also by certain heavy air units. Squashes most ground melee units. Introduced in patch 1.06.
Examples: Druids of the Talon, Gryphon Riders

Siege[edit]

Used by siege units, to destroy fortifications and spellcasters.
Examples: Meat Wagons, Chimaera

Hero[edit]

Used by Heroes. Full damage to all units except those with Fortified armor.
Introduced in patch 1.06.

Chaos[edit]

Used by powerful summoned units and creeps above level 6. Full damage to all armor types.
Used by the Demon Hunter in demon form.
Also used in the campaign by Chaos Orcs, as well as certain characters.

Spell[edit]

Used by abilities. Deals reduced damage to heroes.
Also poison abilities use this attack type. Note that spell immunity does not affect spell damage.
Locust is the only unit, that uses this attack type.

Armor types[edit]

Heavy[edit]

Primarily used by melee units, long-ranged siege weaponry, and summoned units.
Examples: Druids of the Claw, Demolishers

Medium[edit]

Primarily used by ground ranged units.
Examples: Riflemen, Spell Breakers
Also used by Workers.

Light[edit]

Used by most air units, and Scout Towers.
Examples: Destroyers, Frost Wyrms

Unarmored[edit]

Mostly Used by spellcasters, and certain air units.
Examples: Necromancers, Gargoyles

Fortified[edit]

Used by most buildings.
Also used by Siege Engines.

Hero[edit]

Used by Heroes.
Resistant to most types of damage, except for Normal and Chaos. Takes 70% damage from Spells.

Divine[edit]

Used by powerful characters in the campaign.
Divine beings take only 5% damage from attack types other than Chaos.

Damage calculation tables[edit]

The Frozen Throne[edit]

100% 150% 100% 100% 70% 100%
100% 75% 200% 150% 35% 50%
200% 75% 125% 100% 35% 50%
100% 50% 100% 150% 150% 50%
100% 100% 100% 100% 50% 100%
100% 100% 100% 100% 100% 100%
100% 100% 100% 100% 100% 70%

Reign of Chaos[edit]

In Reign of Chaos, Heavy, Medium, and Light armor have rotated. So Light takes extra from Normal, Medium takes extra from Magic, and Heavy takes extra from Piercing.

Also note basic melee units such as Grunts have Medium armor, but heavy melee such as Tauren have Heavy armor. Summons and Workers also have Medium armor.

100% 100% 150% 100% 50% 100%
150% 100% 75% 150% 35% 50%
100% 200% 100% 75% 50% 50%
100% 100% 50% 150% 150% 50%
100% 100% 100% 100% 50% 100%
100% 100% 100% 100% 100% 100%
100% 100% 100% 100% 100% 75%

Version History[edit]

Balance Patch History
Patch Version Balance Changes
1.03
  • Creeps above level 6 now deal Chaos damage.
Previously they did Normal for melee, Piercing for ranged.
1.06
  • New Attack Type: Hero. Previously, Heroes used the Normal attack type.
  • New Attack Type: Magic. Previously, Casters used the Piercing attack type.
  • New Armor Type: Unarmored. Previously, Casters used the Light armor type.
1.15
  • Spells do 30% less damage to Heroes, from 25%.