You know those things in your inventory that say energy+3? 
What does that really modify? I havent seen a change in my stats.
                
            What is energy and protective junk for?
Infinite Sadness
Ashe Quixon
                    you have to equip them. If you do they add +3 to your energy...
                
            Infinite Sadness
                    which ones can rangers be equipped with? Some dont work.
                
            
Duality
                    they are equiped like a shield. since you're a ranger, if you're using a bow you can't use a focus at the same time.
                
            Harvey Blade
                    You can only use foci if you meet the requirements (if any) marked on it, and only when you're using a one handed weapon.  Bows are all two handed, so foci are usually not worth much to rangers.
                
            