Thanks all, makes sense now. Nice touch!

I've just started in on .8 after a long break from SS and I'm noticing some green numbers on the skills page when you (*) show all. Like I have a Demonspawn skills look like this:

Axes 2 (10%) -1 *
Maces & Flails 0 (0%) -1 +4
Polearms 0 (0%) -1 +4

Can anyone shed light on this?