Wicked Edge of the Planes

The Wicked Edge of the Plane is the ultimate one-hand specialty axe made by Master Axesmiths who are the only ones who can wield it. The original axe is consumed in the crafting. It gives a higher bonus to critical strike rating and attack power.

Source
This item is crafted by Blacksmiths with a skill level of 375 who also have the Axesmith specialty.

The components are:
 * 1
 * 5

The plans are taught by the Master Weaponsmiths in various cities.