After the Greatshield of Artorias, Roman Chayka released a new Dark Souls papercraft, the Greatsword of Artorias, a greatsword in the game. The Greatsword of Artorias has the potential for very high damage. However, since its scaling is spread so much throughout the stats, it is hard for specialized builds to capitalize on much of the potential scaling.
If the player has 40 Strength, Dexterity, Intelligence and Faith, the Greatsword of Artorias has an AR of 658, larger than any other weapon usable with these stats, however, after the player has 50 Strength, it is outdamaged by the Great Hammer Grant. Note, however, that since its AR consists of a split between physical and magical damage it'll be inferior to a pure damage weapon of close AR.
It boasts the strongest Divine modifier of any weapon, however, and as such, it is able to grossly out damage the Grant against specific foes – potentially useful for PvE. The Greatsword of Artorias also has a unique 20% damage modifier against the "servants of dark". These include Darkwraiths, the Four Kings, and Kirk, Knight of Thorns. [Source: wikia]
You can download this papercraft model template here: Dark Souls - Greatsword of Artorias Free Papercraft Download [DropBox]