Suggestion: Make the Lighting Bolt use itself at the end of your turn instead of at the beginning. In its current state, the lighting item is unable to benefit from any temporary bonuses that last for a single turn (Belt of Knives, Wheel, etc.), as the item only gets used at the start of your next turn, by which point said buffs would have long since gone away.
I know this change isn't really all that necessary per se. I just think changing the ordering to make buffing the lighting bolt's damage a bit easier could potentially make it more viable and easier to use in an actual build.
EDIT: I know there are still a plethora of ways to buff lighting's damage in various ways. I just think it'd be nice to make it affected by more types of things just to make the big numbers even bigger. :)