Shock stacks

Stacking shock, as it currently works, is simply ridiculous. You can more than double you and anyone else's damage on a target with all three, and quite easily as long as you have enough strength or spell damage and spare gem sockets. If it wasn't so easy I'd be okay with it, but Chance to Shock is so readily available and Elemental Proliferation exists.

I like SL4YER's idea, but I also like it being a global damage boost for those that take the effort to specialize in it. If it remains global, each occurrence of Shock should probably grant half (20%) of the multiplier it does now for a total of 60% more damage taken, which is still huge. Perhaps it should even be less.