The only AV I soloed as a Warshade was using a Shivan, so I'm not sure that it can be done.
It looks as if you're trying to do it in Dwarf Form, which is what I also tried. If you do this, you will want all of the attacks more heavily slotted, and slot the Drain as part of your attack chain. Also, slot up the Mire with the Damage/Endurance IO rather than the Damage... you lose a bit of damage, but it's a heavy endurance drain. Both the Smite and the Strike need to be 6-slotted, probably with more Endurance reduction in there.
Also, as a side note, why is Gravitic Emanation slotted up for damage? You can actually get decent damage out of it using Procs, but if you're going to slot for its effects, slot for Accuracy/Recharge/Stun. And add a KB to KD proc in there.