Since the nerf of stamplar and it's jabs (R.I.P old templar), it's become less common and less viable to create such a thing as a stamina templar, especially in PvP.
With the arrival of subclassing, I've found that I can have fun AND be competitive playing as one of the less used PvP classes. That said, this is NOT an easy build to be competitive with. You should be familiar with templar, and understand other classes and what they can do in PvP. This build is very DoTs heavy, with sustain being somewhat of a hurting point (classic templar problems).
The first part of our DoTs comes from the dragonknight's [Ardent Flame] skill line being subclassed onto our templar. The passives from that and our champion points really add a little cherry on top. The real killer comes from our Monster Set and our main proc set. Zaan's combined with Mech. Acuity makes for such a devastating burst that can make tanks think twice about being a meat shield in front of you, and make squishies run all over the place.
The damage from the timing of your Mech. Acuity into Zaan's is only aided by our lovely abilities from dragonknight, Venomous Claw and Noxious Breath, making for a killer DoT build.
What your combo should look like:
Venomous Claw → Noxious Breath → Jabs spam
Keep jabs up until Mech. Acuity procs, with Zaan's coming shortly after. Rinse and repeat till everyone's dead.