The volus adept and engineer, on the other hand, are ultra-rare characters, and I'm still trying to get to grip with them. They start with 150 health and 500 shields, combat roll, and cannot take cover. Their light melee activates a tactical cloak off cooldown, and their heavy melee erects a force field to vastly reduce their damage taken. In addition, they both possess the volus signature power, Shield Boost, which provides a hefty burst of shield restoration to the volus and all allies within range. I've chosen to go for the capacity restoration evolution path for both the volus characters, giving them and nearby allies 8000 shields for 12 seconds. Yes, 8000 shields. That's not a typo.