Level 100 Hybrid Purifying Flame Inquisitor^3.17

Notes

TREE:

Optional passives: 
Use vitality reservation efficiency on life wheel if using this aura, otherwise use +50 life mastery.
Expertise and Ancestral Knowledge can be used while leveling to alleviate gear requirements for Int & Dex.
Jewel sockets can be sacrificed for extra life or dps if you don't have good jewels. You'll want at least 1 watcher's eye though (ideally consecrated ground/zealotry) and Conqueror's efficiency can help with mana reservation.

Nodes off to right, snowforged and written in blood, are optional. Same with heart of flame and deep thoughts up top. Same with divine fury and divine wrath skill loop on left. You can swap out these for below perks for more survivability.
Go after Hearty, Barbarism, Juggernaut, Heart of the Warrior, Prismatic Skin, Constitution instead if survivability is an issue.

Ascendancy order: 1) Sanctuary 2) Pious Path 3) Augury of Penitence 4) Righteous Providence
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SKILLS:

Auras: as long as you put points into mana reservation efficiency you can run 2-3 reservation auras here and 1-2 vaal skills to fill remaining slots (doesn't need to be linked)
Zealotry for extra dps. (Note: only pop this during boss fights for extra dps)
Vitality for extra life, especially if running righteous fire. (note: use passive that makes reservation of vitality more efficient)
Herald of Ash can be used for extra dps. 
Defiance banner can be used for balance of survival/damage.
Vaal righteous fire can be used for extra dps. (note: don't activate the vaal auras, only equip the vaal skill to cast when needed). Vitality is req'd to run VRF and ensure you stack life regen & fire resist to max. 
Anger can be used for extra fire damage if DPS is an issue.
Determination can be used for extra survival.
Vaal discipline slotted for extra defense. 
Vaal molten shell for extra defense.

Optional aura 4-link: flammability + blasphemy support + wave of conviction + arcane surge (rec'd Impresence amulet for this to work)


6-link: purifying flame, spell echo, combustion, added fire damage, controlled destruction, intensify (note: intensify requires you to stand still before casting purifying flame)
optional: concentrated effect, elemental focus, fire penetration, or increased area of effect support could replace intensify if you prefer mobility.


4-link Cast when damage taken: cwdt, increased duration, immortal call, elemental weakness (can swap either for stone golem, enduring call, or molten shell here if not used on shield setup)


Mobility: 4-link (flame dash, faster casting, arcane surge, wave of conviction) - WoC is used to supplement your main attack.
Note if you take Eldritch battery (Devouring diadem helm is also required in this case) then you must swap arcane surge for second wind support since you won't have energy to spend on flame dash or WoC. This helps flame dash timer.


Shield 3-link: CWDT option is cold snap, bonechill support. (if running snowforged passive this is rec'd)
Alternate shield: Cast when damage taken, stone golem, enduring cry (or anger) if not running snowforged. 
Alternate 3: Righteous fire linked with Arrogance and Vitality (use this setup w/ Auras Purity of Fire/Anger/HoA in aura skills mentioned above)
(Note: if you run RF then ensure you got enough vitality and life regen 14.5+%)

Weapon 3-link: Power charge on critical support, armageddon brand, culling strike support
Optional Weapon 3-link: Culling strike, assassin's mark, mark on hit is another good finisher to grant power charges.

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Flasks: I always tend to run 1 life, 1 diamond or granite, 1 quicksilver, 1 hybrid, and 1 mana  
You can swap diamond/granite, hybrid, and/or mana for a sulphur or unique (the wise oak or bottled faith or cinderswallow urn)
Ensure you have staunching/warding/allaying/sealing for bleed mitigation. 
Curses, cast speed, poison, frozen, shock, and burning are also good potion affixes to help.

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GEAR: 

Weapon: rare scepter (sambar is best base) or Cerberus Limb or Doryani's Catalyst or Nycta's
affixes - gain % physical as extra fire, % increased to spell damage, % increased critical strike chance, Adds # to # fire damage, penetrates % fire resist, % increased cast speed, % increased fire damage

Shield: Magna Eclipsis Pinnacle tower or Lioneye's remorse  
(Light of Lunaris is good if running crit based build instead of elemental)
(Saffell's Frame is also good if using righteous fire build variant)


Helm: Geofri's crest or Rare bone helmet (resistances, max life, attributes, enemies have -% fire resistance) 

Gloves: vaal caress (move vaal skills to this) or a rare (fingerless silk rare w/ resistances, max life, energy shield)
replica volkuur's is a good fill in if you need chaos resist

Boots: rare (movement speed, resistances, max life)

Chest: Zahndethus cassock then carcass jack or ambu's charge or loreweave or rare (life, resists, energy shield, attributes)

Belt: Torrent's Reclamation or the tactician or abyss or leather belt (life regen, resistances, max life, increased fire damage)

Amulet: Ashes of the stars or Xoph's blood or any rare (affixes- life, physical damage as fire, critical strike, gain charge on kill, increased fire damage, resists, attributes)
Impresence if running flammability + blasphemy support 
Note: if you use xoph's blood then you can swap out the avatar of fire passive in your tree because the amulet gives it free

Rings: Circle of Anguish (rec'd if using Herald of Ash) or gifts from above + any good rare (life, resists, fire/spell/elemental damage)


JEWELS: 
Watcher's eye (ensure aura's match what you're using) 
Abyss (max health, adds fire damage, critical strike)
Conqueror's efficiency (good while leveling)