Could you add Grond, the Hammer of the Underworld? Every blow of the hammer brought down a lightning strike and left a smoldering crater. So, it's just a cool weapon and i would like to see it added to the mod.
I wold personally love to see more lore weapons like anguirel, anglachel(Gruthang), aranruth, and aeglos. It's a bit of a shame that there aren't much named evil items though. However, I'm not sure if these weapons will be lore-friendly as most of them are lost or broken. Grond sounds like a really good idea.