I was doing some test on dummies in sanctum and i found an abnormal damage bonus from storm/elem with forked lightning.

Done with this spec

http://postimage.org/image/1gp39ev7o/

http://postimage.org/image/1gpbj3lok/

I tried with an storm/lock spec and the bug don't show up...
Done with electrified x3 and without proc talisman/planar