This is the exact class choices I’m running on my swordie. lvl 201 Corsair 2 atm. cors/doppel synergy is higher than corsair/fencer because 0cd skills arent synergetic with DWA but thats not a big deal since the 0cd make DWA an alternative for sp management. doppel is far stronger though. I’m going 2:1 str/dex doppel is good aoe with cyclone, but with roxona plate gloves and eventually gladiator bands (unless i go sissel bracelets) will allow hexen, dust devil, and barb skills to hit tons of targets in their hit boxes. weapon choices are fine, plus you can weapon swap anyways. rapiers are a problem though, with their low durability you have to carry 2.
keep in mind swordies still lack in damage department compared to other classes, but this is one of the builds that offer good damage potential for the swordie tree, and it only gets better when kToS barb buffs hit here. as for tanking role, at my lvl I can tank some lvls above me in sialau mission without swapping to shield thanks to okay dex roxona gear and jolly roger attribute.