GrimTools: Conjurer, Level 100 (GD 1.2.1.2) - Grim Dawn Build Calculator
Who wakes up wanting to weaponize their healing totems? Surely I’m not the only one???
My understanding of totems and similar pseudo pets is that if you assign a Celestial Power to it, the power is affected by all of the things that affect the pseudo pet - damage conversions and so on. So I figured that would apply to the 2.2x damage that the Spectral Warmaul gives to the wendigo totem. 
The result is a fun, high damage melee / close range AOE vitality build with a tonne of healing, although still squishy if caught offguard. Here it is in action.
Crucible 150-170 (~5:20)
SR 80 (~5:00)
Key Features
Wendigo Totem Damage
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The build has 2x powerful wendigo totems, dealing up to ~290k damage per second each (~580k combined), and with up to ~100k vitality decay DoT each.
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100% elemental damage converted to vitality, 75% chaos damage converted to vitality.
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Flame Torrent on the wendigo totems can crit for up to ~185k damage per projectile, and with up to 82k Vitality Decay DoT
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The Decay damage from Flame Torrent and Wendigo Totem stacks per totem, with teach totem potentially doing ~182k damage, for a total of ~364k DoT damage per second.
Wendigo Totem healing
- ~7,500 healing per second
Each totem heals for 13% + 1350 hp. As the build has 6% healing effects increase and ~17k hp, that becomes roughly 7,500 healing per second for this build if both totems are up, you’re within range of the totem, and the totem is within range of an enemy. (Note: Wendigo totems do not heal if there is no enemy within its presence).
Reaping Arc ( Uroboruuk’s Reaping relic )
The use of the Reaping Arc relic means I still get a powerful ‘default attack’, but without having to invest any skillpoints. With high weapon damage of the build, it works out nicely. I had considered using Oblivion for a ranged attack, which would provide better fumble/impaired aim for the build. But, as you need to be in melee range for the wendigo totems to heal properly and they have a short distance casting range, I figured it made sense to lean into a melee build.
Between the wide arcing Reaping Arc (max 6 targets) and the two Flame Torrenting Wendigo Totems, this makes for an amazing melee-ish ranged AOE death field for anything that enters.
Things to Note
Squishi
- Build is susceptible to spike damage
The build has incredible healing, but very low armour, average phys resistances, low damage reduction to enemies and only intermittent damage absorption. It has decent HP and incredible healing. What this means is that the build takes big damage quickly, but also recovers incredibly quickly. It means that the build is susceptible to spike damage from shotgun attacks (Mad Queen, Zantarin, Valdaran).
Other Considerations
Consideration of Other Celestial Powers
- Flame Torrent was chosen because of its low cooldown, good damage conversions, multiple projectiles per cast, converted DoT damage and high chance to proc
I tried a range of other celestial powers to experiment with different damages and so on. The main consideration is powers with low cooldown, so that both of the wendigos could be proccing them simultaneously, or in a way that could stack and effectively double the dot damage or something.
Click Full list of Celestial Powers Considerations
Ones that I tried:
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Wendigo’s Mark: Not bad because it has 0 cooldown, and can be applied to many enemies. The overall damage output is low, and I don’t believe that the player benefits from the healing received, because it is cast from the Wendigo Totem
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Twin Fangs: Not bad damage per target, short cooldown, it gave the Wendigo Totems a ranged attack that could pierce through enemies if triggered, and yet it felt… inconsequential, especially as it would typically only hit one or two enemies per cast.
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Blizzard: Low cooldown, big AOE spike damage seemed appealing, but for many fights the Blizzard would come down on enemies not near the wendigo totems (ie not the ones I’m currently fighting / not the ones with the RR debuffs on them), or by the time it triggered and the shards started to fall, the enemies would be dead so the shards hit nothing. Or I’d be fighting smaller targets where the overall damage of the blizzard becomes limited.
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Fissure: Honestly, not bad DPS once they start going, but the 1.8s cooldown meant that it took a bit of time before you could stack them up, and again, mainly good against larger targets who can be hit by multiple projectiles
Ones that I haven’t tried but were considering:
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Hand of Ultos: Much wider AOE damage for the totem,including a good amount of dot damage, but the cooldown is a little slow.
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Reckless Tempest: Hard to get with the current devotion configuration, and would only have one being cast at a time. But it would add an awesome constant AOE damage for the totems to speed up trash fights and crucible
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Maul: 0 cooldown, amazing, but only ~70% physical damage converted to vitality. It is also had to get with the current devotion configuration, although if done well and with good RNG on the trigger chance, that added damage per wendigo totem could add some really nice close-AOE spike damage.
Enjoy!
Almost 3500OA, did lose ~50 DA though (and probably some resists from the crane) 
