Appears the Kingslayer Ornament is a bit bugged. I tested this with 6 Different illusions, all produced the same result on my Bard. When Equipped, and under an illusion - should you click off the Illusion from the buff window. The Ornament re appears and seems to draw the incorrect file when re producing the graphic for the new model. It seems to default to the appearance of a Caterie Longsword.