The lightning charge bug has been around awhile. A few patches ago when the sapphire spark necklace used to add 1d4 psychic damage as well as an extra missile to magic missile spell and the poisoners robe was bugged to proc 1d4 poison on every spell not just poison. So an upcast 2nd lvl magic missile would shoot 5 darts, each hitting for 1d4+1 force plus 1d4 psychic plus 1d4 poison. The lightning charges would proc on all three damage types for each missile or 15 times giving 30? lightning charges. That would add 6 cases of 1d8 lightning damage on top of the force/psychic/poison resulting in a auto hit magic missile spell with well over 100 damage potential.
