I was fighting slimes in a low end champ spawn. My weapon was getting trashed so.. I got to thinking of using my holy light to kill the ones that surrounded me and save my weapon some damage. I discovered that if I had 200 durability left on my weapon and had say 15 slimes all around and I burn them to dust with my holy light; my weapon took 15 durability loss. I was able to over-come this by removing my weapon, but why would my weapon be damaged by my magical attack? If that is the case should not my shield be eaten away as I block the slime attack? I think I found a bug. I will be summiting it. Just had never noticed this before.