Since just posting range led to confusion, here's actual damage.
Neutral, self-buffed Chain-Lightning damage (up to about 300k crits) off infinity.
Spoiler!
That would be about right, but I probably wouldn't be able to get +40% arcane aim and +10% storm magic on anything without much pdr.
Spoiler!
Build it up with magic claw or lolenergy bolt.
Butts.
213 181 178 166 165 164 162 152 147 135 134 130 125 123 123 120 120 104 100 100
My new goal is to out-damage Mike.
.......