-5 energy is quite good for a ranger as a ranger can use the expertise to reduce energy usage. I personally use a 15% all the time -5energy dead bow and have not ran into any energy problems. -5 energy is only good for rangers and warriors. -10 armor while it may not impact you directly when you start getting hit you will feel it imagine your ranger wearing the equivalent to monk armor when a warrior is pounding you? -1 energy regen and -1 health regen are the worse mods.