Change Electrical Charge from
Enemies slain by this attack have a 15% change with normal Lightning Strike and 25% with charged Lightning Strike to explode and release bolts of lightning upon their allies.

To
Enemies hit by this attack have a 15% chance with normal Lightning Strike and 25% with charged Lightning Strike to have the electric current bounce to nearby targets and inflict lightning upon their allies"


The current way is just like Chest Splitter, but with lower % chance of explosion, yet it only hits 1 target instead of multiple. So to balance it out, i think it should have a chance to bounce to multiple other targets when hit, not when slain