1handed weapon Anmalice bugs out

[stilez666]

There's a 1handed weapon, Anmalice, that starts -mental save, where if you kill with it, will get to 0 mental save. This is the second character I've had it bug out on.

I used it say around level 35-40. I got a better weapon, transmogged Anmalice. 5 levels later at random times I get messages like "Anmalice focusses it's mind piercing eye on "Character name". And I get a debuff for 3 turns or something. It seems to always happen if I'm in Last Hope. It rarely, but occasionally, occurs inside a dungeon. The debuff is decreases mind save by 5 and increases mindpower by 0.

I can sorta understand it doing that if it's still in your inv, once you forsake it or something. Cute flavor. But I destroyed the weapon long ago. What gives?