Thanks for the replies.
I generally don't have this problem since literally all but one of my characters are in berserker. However, engineer hasn't been as cut and dry.
The Firearms trait line is essentially the same as necromancer's Curses in that it's precision/condition damage. I wanted a turret build and that's all in Inventions, which is toughness/healing. According to the wiki, turret
direct damage isn't affected by character stats, but condition damage is, which leads me to believe I should focus on condition damage more than power. Unfortunately, turrets can't crit so precision (as far as I can tell) is only helping my rifle attacks. I'll have to check and see what her crit % is.
I can't seem to find much in the way of "Rabid" gear though. It looks like a prefix that's just on accessories and weapons? I'm thinking Carrion is maybe what I need though since I'm lacking in vitality as a stat and precision is going to be of limited usefulness to me, although, I suppose having more power is always useful as well.