STATS:
This build should be at roughly 40k Health and as close to 30k Magicka as you can make it. I currently use 49 Attribute points in Magicka and 15 points in Health. The 40k Health is really important to help survive burst damage.
GEAR:
Mark of the Pariah - This set makes you much harder to kill, making you tougher as you lose health. It is important for a healer to be tanky in PVP, so Pariah's being Heavy Armor in addition to its set bonuses is fantastic.
Wretched Vitality - It's very easy to run out of Magicka while healing, but due to all of the major and minor buffs that this set-up can grant, this set really helps manage your resources
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SKILLS:
FRONT BAR
[Warding Contingency] -
[Healing Soul] -
ULTIMATE
BACK BAR
ULTIMATE