Discipline
(2) Set Bonus: Smite and Penance damage increased by 20% and Smite extends the duration of an active Atonement by 2 seconds.
(4) Set Bonus: Smite has a 100% chance to cast an additional time during Shadow Covenant, dealing Shadow damage.
SMITE HITS FOR 12K DMG it doesnt even worth casting it in PvP…
have a look at all the other healers
Restoration Shaman
(2) Set Bonus: Chain Heal, Healing Surge, and Healing Wave mark their initial target with a Tidal Reservoir, causing them to receive 15% of all Riptide healing you deal for 10 seconds.
(4) Set Bonus: Riptide’s healing is increased by 15%. If Riptide is active on the same target as Tidal Reservoir, its heal over time effect has a 10% chance to create a new Riptide on a nearby ally.
Restoration Druid
(2) Set Bonus: You and your Grove Guardian’s Nourishes now heal 2 additional allies within 40 yds at 40% effectiveness.
(4) Set Bonus: Clearcasting now causes your Regrowth to also cast Nourish onto a nearby injured ally at 200% effectiveness, preferring those with your heal over time effects.
Preservation
(2) Set Bonus: Empower spells cast Living Flame at enemies or allies struck at 40% effectiveness.
(4) Set Bonus: Living Flame has a chance to apply Echo at 100% effectiveness on allies healed, or a nearby ally who doesn’t already have Echo.
Holy Paladin
(2) Set Bonus: When Glimmer of Light dissipates or is refreshed, it creates a Holy Reverberation on its target to heal an ally or damage an enemy for over 8 seconds. Multiple Holy Reverberations may overlap, up to 3 times.
(4) Set Bonus: The cooldown of Daybreak is reduced by 15 seconds.
Mistweaver
(2) Set Bonus: Renewing Mist and its jumps apply Chi Harmony, increasing its targets healing taken from you by 50% for 8 seconds.
(4) Set Bonus: 15% of all healing you do to targets with Chi Harmony is stored and then dispersed evenly among your allies with Renewing Mist when Chi Harmony fades or is refreshed.
Holy Priest
(2) Set Bonus: Holy Word: Serenity applies 14 seconds of Renew to its target. Holy Word: Sanctify applies 5 seconds of Renew to allies it heals.
(4) Set Bonus: Renew’s healing has a chance to cause your next Holy Word: Sanctify or Holy Word: Serenity to not consume a charge when cast and cost 50% less Mana, stacking up to 2 times.