So I cannot for the life of me figure out where a source of cold damage is coming from, none of my gear has cold damage on it, none of my charms have cold damage on them, and I'm using whirlwind. At some point i see something proc and i get a bunch of new damage and my damage indicator numbers turn blue. I'm not wearing any on strike or when struck stuff and its whirlwind so none of the on strike stuff works right? So no idea where its coming from, help?

post pics of gear

Its coming from...

raven frost?

is your fortitude making the cold armor that shoots ice bolt or is your merc's holy freeze's cold pulse hitting monsters?

Blue is also enhanced damage, it could be Might from the merc.

Chilling armor from fort
Or
Merc