I hardly PvP anymore, but when I do I run Master's 2H front bar with the Brawler skill, and a bow back bar. I love the bow for the dodge roll speed as I find alternating dodge rolls on the bow bar with Streak has great synergy. Good for defense and just plain fun. This has proven effective in low MMR battlegrounds and for zerging in open world. Brawler fixes one of sorc's major weaknesses, e.g. healing, to a degree, as you can stay on the attack and shield at the same time. If you're fully buffed and at full stamina, you can streak into a hot spot only to leave when your stamina gets low, probing for weaknesses. It won't win you any duels, but it can slay in low MMR BGs and it's handy enough for chaotic battles in open world.

The key to this kind of build is sustain, especially in BGs and no CP in general. A Wretched Vitality back bar is an obvious choice, as is Engine Guardian. The final set is up to you. Could be a proc, maybe Way of Fire, although defensively what sorc really lacks is a purge. The more you're leaning on Dark Deal for healing, the more you're also leaning on Streak and kiting. However it's worth noting that shielding mitigates DOTs and swinging Brawler even without a target still generates a base-level shield.

You could also try a Master's Bow, Blackrose Bow or maybe a (Vateshran) ice staff back bar. Draugrkin would buff that and would buff Bound Armaments, but what do I know. I'm now just bandying about a fairly standard idea that may or may not work in this context. Draugrkin and status effects are among the meta options, though Master's dual-wield is probably the single most effective thing.