Executioner weapon

Executioner Weapons are special weapons that deal extra damage to a specific type of enemy.

Executioner Types
There are 10 different types of executioner weapons that can be on a weapon:


 * Animal
 * Arachnid
 * Demon
 * Dragon
 * Ent
 * Giant
 * Humanoid
 * Ork
 * Reptile
 * Undead

Damage Increase
There are 3 different levels of extra damage you can from executioner weapons:

Example weapon and affect: A Dragon executioner long sword would give the wearer a 50% damage increase against dragons

Source
Executioner weapons are made by using a Executioner Scroll found as loot on one of the Colossals.