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First Descendant
Warden and Arcanist are the best Stamina Healers. There is nothing you can‘t do which Magicka Healer can. We use the same sets, but the play style is different as we use martial weapons for healing (Bow and/or Greatsword) and de-buffs (DW and 1H&S).
This build provides massive heals via 
Echoing Vigor & 
Soothing Spores which trigger Powerfull Assault set's unique WSD damage buff and Major Courage (Spell Power Cure set) plus insane Ultimate generate (Minor and Major Heroism) with the new Class Mastery, Torchbearer and Trample. 
Torchbearer also provides purge, and every time 
Trample hits enemy you instantly gain 1k WSD. 
Smash provides Damage Shield, HoT and Minor Berserk – basically our Combat Prayer. Use 
Vault as the out of jail card from large AoE and to heal allies inside it. 
Expansive Frost Cloak and 
Bull Netch should always be up.
Growing Swarm can be replaced with 
Deep Fissure or 
Deceptive Predator.
Monster sets: 
Ozezan the Inferno, 
Symphony of Blades and 
Nazaray are all good depending on situation. 
Sentinel of Rkugamz is the best for beginner.
If Major Courage is covered by Warewolf which is often the case since U50 or if there is other Healer with SPC set, the best alternative set is 
Pillager's Profit because of insane Ultimate generation.
Alternative body sets: 
War Machine is the best for boss encounters, and for trash, too if you can quickly build up Ultimate. 
Apocryphal Inspiration can be used in normal PUG or guild progression trials only if group needs sustain otherwise it's not worth it. Unfortunately Stamina Healer/Support set 
Phoenix Moth Theurge is useless in PvE as it triggers on healing and not overhealing plus Minor Force is useless, too as it's easily sourced by DDs. If ZOS one day changes to triggers on overhealing and to provide Minor Berserk instead Minor Force, or replace both Minor buffs with Major Courage, it would become the Stamina version of Spell Power Cure.
