Darkshard

Description
Darkshard is a single-edged curved blade. It is 4 and half feet long from pommel to tip. The connection between the blade and the shaft glows upon magic that channels within. Surprisingly the weapon is only 3 pounds in weight, which suggests its made of some sort of light yet very durable material.

Magical Properties
Though, the shaft seemingly houses a source of power in the part where the blade is connected. The blade doesn't dull at all, even after years of use. When magic is being channeled into the blade, it starts to glow and a teal-hue. This allows the spear to channel magic through the weapon to the corresponding power of the user. The user's creativity is the limitation.