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This is one of the strongest healing and survivability builds for endgame content that you can use. Using Speaker’s Sight, your healing grenade will now also create a restorative turret that will heal allies and occasionally create orbs of power. The turret will last for 15 seconds, and releases healing seeker orbs every 3 seconds to allies. These orbs will apply Cure and Restoration for a few seconds in a small radius around the healed target. The effects are improved when using the Touch of Flame aspect. All selections in this build are focused towards healing your team and helping everyone survive. The most helpful weapon perk you can use will be Incandescent as it will directly interact with some of the selected fragments to help your abilities stay active.
Aspects
Touch of Flame is a big increase in our survivability. Healing grenades now have improved healing and restoration effects. This effect also translates to a better performing healing turret. Hellion is a great second choice aspect to help keep a bit of outgoing damage, since this build is highly focused on healing. When using your class ability, summon a solar orb that launches solar mortar orbs at enemies that scorch them.
Fragment
Ember of Searing will create Firesprites when killing any scorched enemy. It does have a short cooldown between activations. Firesprites provide grenade energy when collected. Ember of Benevolence will increase all your ability regeneration when you apply any solar buff to allies. This includes Restoration, Radiant, and Cure. Ember of Mercy grants restoration to yourself and allies when you revive allies. An added, and more important effect, when you collect Firesprites, you receive restoration. Ember of Singeing will recharge your class ability faster when you scorch enemies. Since we are using Hellion, when you use your class ability, you will scorch enemies.

Touch of Flame & Hellion

Ember of Searing
Defeating scorched targets creates Firesprites
Ember of Benevolence
Applying Cure, Restoration or Radiant grants increased ability regeneration
Ember of Mercy
When you revive an ally, you and nearby allies gain restoration. Firesprites grant restoration
Ember of Singeing
Class ability recharges faster when you scorch enemies.

Phoenix Dive
Dive down to cure allies. While in heat rises, also scorch enemies.
Burst Glide
Best overall movement jump for the Warlock.
Celestial Fire
Ranged scorching melee attack. Helps apply radiant.
Healing Grenade
Great survivability for yourself and allies. Applies cure and restoration. Required for this build.
Going into the full support class, Lumina is a natural choice. This weapon can help heal allies, and give them a damage buff. Healing allies with Lumina will also apply both buffs to you. The catalyst helps with the overall uptime of the buffing effect by providing more stacks per kill. If you want a more damage oriented weapon, both Gjallahorn or Dragon’s Breath fit nicely. Gjallahorn will buff allies rockets to help them with dealing more damage. Dragon’s Breath is just an overall good damage over time rocket that can be used.
The Calus Mini-Tool SMG can roll with Incandescant which is very strong with any scorching build. Highly recommended in this build.
A phenomenal choice for scorching and healing, and particularly strong against tougher enemies, it’s high ammo economy makes it really sustainable.
One of the strongest rocket launchers currently available. This weapon can perform in both neutral game, and endgame content.

Incandescant or Demolitionist
Any weapon with Incandescant is ideal for this build. Because Incandescant will Scorch targets for each final blow. The more scorch stacks on enemies the better since it helps with solar ignitions as well. You could also get away with Demolitionist to keep your healing turret up more often.
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Solar Siphon/Harmonic Siphon
Either one of these siphons works for the build. Recommend using the less expensive one that is currently available.

Hands-On
Generate super energy on melee kills.
Font of Wisdom (opt)
Increase Intellect for a short while.
Firepower
Powered Melee final blows create Orbs of Power

Impact Induction
Causing damage with your Melee attack will reduce your grenade cooldown

Element Resistance
Use the appropriate element resistance that corresponds with the activity you are doing.

Solar Weapon Surge
While having active armor charges, your Solar weapon damage is increased.

Innervation
Reduce grenade cooldown with each Orb of Power pickup

Absolution (opt)
Reduce all ability cooldowns with each Orb of Power pickup.

Time Dilation
You can retain armor charges for a longer period of time

Bomber
Reduce your grenade cooldown when you use your class ability