Consider forgoing shield power. In order to collect a health orb you must have less than your maximum health, so when using Equilibrium it is beneficial to take a controlled amount of damage in order to get the maximum benefit from health orbs (also consider using Rage to recover energy while taking damage). If your Shields rarely drop to zero you will not take damage and will be unable to collect any health orbs, potentially leaving you in situations where you have no Energy for skills, are surrounded by health orbs, yet are unable to collect them in order to replenish your energy reserves.