Talk:Knight's Honor/@comment-24886111-20141201212921/@comment-50.152.9.228-20170406235045

It is possible that you only needed two in an older patch. However, I tested this just moments ago; I made sure that the Cursed Greatsword of Artorias was the very last weapon I got for the achievement. You do, in fact, need all 3 Artorias weapons on the same character for the achievement, so without gaining a Soul of Sif from another player, you must go to NG+2.

In short, I had the true Greatsword of Artorias and Greatshield of Artorias (and all other weapons on the list except the cursed version) and no achievement. Crafted the Cursed Greatsword of Artorias, achievement acquired.

I did not test the Demon's and Izalith catalysts; I had both of those before the achievement.