Recently used the anvil of krong to modify a weapon i found and got lucky enough to have it enchant with lightning procs. Only issue is every time the lightning effect goes off it crashes the game instantly without fail. I parked my character with the item equipped next to a monster zoo in the save for easier testing.
Also on another note the reason why i know its the proc is because i can equip the fatso blade in my inventory and happily slay as many things as i like without any crashes as well as the electric sfx playing when the crash occurs and not on regular swings.
Try using http://patches.gaslampgames.com/dredmor/dredmor_hotfix_test11b.zip and see if you still crash?
