Last night I found a legendary mace, Odyn Son.
I'm unclear on how its Chain Lightning ability works, beyond the obvious that there is a 38% chance on hit that it triggers. How is the damage for it determined? How many enemies can it hit, and at what radius? Is it related to the Wizard's Electrocute skill, runed with Chain Lightning? If so, is it actually treated as a skill and thus gains benefit from +Lightning skills gear?