A build focused around boosting primary crit chance. I'd prefer slightly less duration and slightly more range, but that isn't possible without dropping another part of the build.

[Quick Thinking] provides some additional tank if necessary until [Adaptation], Parasitic Link, and [Nidus]'s passive take over. [Gladiator Finesse] might help more than [Quick Thinking] since the mod energy drain has a lower priority than [Nidus]'s passive in preventing death, so the set bonus would provide advantages when things aren't going critically wrong, but this build focuses on pushing primary crit so I'm not bothering with the gladiator set bonus here.

For an alternate build, see my (untested) Gladiator setup.