Attack Type

Normal

Normal attacks do extra damage against Medium armor, and reduced damage to Fortified armor.
Piercing

Piercing attacks do extra damage to Unarmored units and Light armor, and reduced damage to Fortified, Medium armor, and Heroes.
Siege

Siege attacks do extra damage to Fortified armor and Unarmored units, and reduced damage to Medium armor and Heroes.
Chaos

Chaos attacks do full damage to all armor types.
Magic Damage

Magic attacks do extra damage against Light and Heavy armor, and reduced damage to Medium, Fortified armor, and Heroes. Magic attacks do 66% extra damage to ethereal units, and zero damage to magic-immune units.
Hero

Hero attacks do reduced damage to Fortified armor.
Attack Type/Armor Type

Attack Type versus Armor Type
- Light Medium Heavy Fort Norm Hero Unarmoured
Chaos = 1.00 1.00 1.00 0.40 1.00 1.00 1.00
Normal= 1.00 1.50 1.25 0.70 1.00 0.75 1.00
Pierce = 2.00 0.75 1.00 0.35 1.00 0.50 1.50
Siege = 1.00 0.50 1.25 1.50 1.00 0.63 1.30
Hero = 1.00 1.00 1.00 0.50 1.00 1.00 1.00
Spells = 1.00 1.00 1.00 1.00 1.00 0.75 1.00