I would take out Riposte and put in something like Final Thrust. But then, I'm just in love with Final Thrust.
I would think that Mending Touch / Remedy Signet would be better in the slot that Plague Touch is in, as both do not require an enemy to be around. I would go with Mending Touch.
I second the use for Final Thrust. Plague Touch is used here for you to put the daze condition on the caster. It makes your elite into a mini skullcrack or something.
dude...you just gotta bring enraging charge.. its awesome... instantly charges quivering blade.... thats why I start the fight with enraging charge+hamstring.... target is cripples and ready to be quivered, severed, gashed, and finaled