One Question about thief commander
Everything looks good to me, except I’d be venom bombing. I feel that a thief commander needs to adapt to the group he is leading rather than his own survivability. AoE triggers and effects will combo for more damage as well as retaliations, area healing, and cleansing bolts. Keep in mind that you will also have boons and healing from your allies, that is, if the group stacks and doesn’t scatter like a bunch of flies.
The armor and weaponry (+ traits) you have should be enough to withstand a battle for a good amount of time. I would swap out Shadow’s Rejuvenation for Venomous Aura, giving you and your allies the venoms you trigger, running Skale Venom / Ice Drake Venom / Devourer Venom / Basilisk Venom. Rather than Slowed Pulse, I’d use Cloaked in Shadow for AoE Blindness, and the extra 10 trait points into trickery for Thrill of Crime for AoE fury, might, and swiftness.
To add to healing, I would go with Sigil of Renewal on both sets, which allows you to heal you and your allies for a good amount of health on weapon swap, and Withdraw to break from any stuns, cripples, or immobilized states (quick 15-second refresh as well).
Keep in mind this is something I, personally, would do and there is no right or wrong answer. 
Good to go!