Hi,
For the talents 1st: I wouldn't take the link r3, it's a waste of talent points. r1 or 2 if you have enough point is good already.
Meditation is pretty bad overall. If the made it like the concentration skill, just activate it and not channelling, it would be nice. But right now, it's crap imo.
I would take Wall of blade too, as it generates breakdown stacks and you can extend it's duration with direct attack and psychosis, which means even more stacks *_*
for the rest, it's good to me.
For the rubies: I wouldn't take the 45% dmg increase on Vertex and disintegration (3rd grid, down left). You will use vertex once every 15sec (or is it 20? don't remember). taking 3 rubies into that just isn't worth it. As for disintegration, you said it was a single target build, so you just won't use it (it's better to let the phantoms hit during all the timer than to make them explode, both because it will generate breakdown stacks and because the overall dmg from the phantom is higher than the explosion.)
There is 10% dmg increase on all your skill when under link. That's a must have. (2nd grid, down middle)
the 30% dmg increase on wall of blade and psychosis, if you have enough rubies, is pretty nice to have. (1st grid down middle).
For the rest, i don't see any big errors.
As for the stat, in PVE you will need a minimum of around 350-400 crit chance to be sure of having your pyrolisis stacks procing. if you play ith a paladin or an engi support that consistently put the +350 secondary stat buff, you can consider lowering this amount. For the other stats, the amount depends on you, but keep in mind that in PVE, Determination > Brutality > Proficiency.