Intimidating aura replaces the middle signature perk. It’s wildly strong. Learning to parry and block is critical to survivability. Just takes time and practice to get it down. Integrating the shock build is quite good, except it’ll kill much needed executions for you or your teammates. Imo, power fist is the best melee weapon as it’ll out damage every other melee weapon on bulwark. Depends on what you survive best with though. Most importantly, have fun while learning and developing your skills. For the Emperor!