I played my 1st warlock using this guide some time ago. Fell in love with warlock class after. Want to share my 5 cents on gear sets and race, and maybe hear feedback on it from Voodu himsels. So i started my Bladeforged Iconic lives(and first robot in general).
Armor\Docent
First thing I noticed - you need to spend feat to get armor from docent. Second - you have only two options - light or heavy armor.
Cons: Light armor obviously bad choice for tank, as MR caps on 100. Heavy armor does not give you bonuses from ES tree and has 35% ASF.
Pros: There are 2 docent sets that are very interesting for warlocks. First:
Legendary Glass Heart and Feywild Dreamer set are great for Sound\Acid warlock. Having extra 15% crit chance for all spells is a beast and 10% for Acid\Sound\Light set bonus propagates your crit chance really high. Second, and more tanky -
Legendary Ironheart and Guardian of the Gates set. Any flashy race can also go for this set, but will need to sacrifice 3 feats to get it(light, med, heavy armor feats) as there is only heavy armor.
Arcane Spell Failure Chance
Since ES only has med armor enchantment - it wont halp us reduce ASF. What will help us is BF\WF enchantment 15% + Augment 15%. This is 30% in total. In case we are using Heavy Shield it is 20%. This can come from Filigrees or Filigrees sets: Frozen Wanderer: Arcane Spell Failure, Otto's Irrevocable Power: Spell Failure Reduction, Coalesced Magic: Arcane Spell Failure or Zarigan's Arcane 2 items set bonus. I don't know if single Filigrees stuck with each other, but Coalesced Magic: Arcane Spell Failure and Zarigan's Arcane set bonus do stuck for sure.
Fond out that
Legendary Crystalline Ward 10% ASF reduction does not stuck with Augment.
Conclusion
So now we have Feywild Dreamer\Guardian of the Gates heavy set warlock with heavy shield. Going BF gives you self healing that with decent gear(Itonheart+Celestial Amethyst Ring) \BF enchantment\2 Shards of Mechanus Filigrees\Construct Exemplar feat gives decent healing, but it starts do lag behind on r6-r8 and heals for 500 with 230 repair amp and 500 repair SP. Also you have decent Healing Amp from Legendary Bronze Dragonscale Belt and Legendary Ironclad Armbands that will help your healer keep you alive.
About gear set I am still working on it, I do miss some gear from Sharn(like another pair of Legendary Collective Sight with ins const), so these gear sets can be used as template.
Guardian of the Gates:
Goggles: Legendary Dusk Lenses(potency for healing and ins potency for healing and dmg)
Head: Legendary Standard Issue Faceplate(set bonus, nature armor)
Neck: Legendary Standard Issue Sigil(set, spell saves, protection)
Trinket: Bell of warding(charisma, Sound SP and crit chance)
Cloak: Legendary Cloak of the City's Champion(ins con)
Belt: Legendary Bronze Dragonscale Belt(con, heal amp, neg resistance, hp)
Ring1: Legendary Celestial Sapphire Ring(profane well rounded and possibly dex for saves) or Legendary Celestial Amethyst Ring(repair amp). Alternative: Legendary Spinneret, Lantern Ring
Ring2: Slavelods(68 hp, 14 resist, 6 spell DC's, 4 quality const)
Hands: Gauntlet of the Iron Council( artifact for 3 slots, spell resistance, acid res, +1 con more than belt)
Bracers: Legendary Ironclad Armbands( healing amp, heal sp)
Boots: Legendary Softsole Slippers(ghostly, ins cha, performance)
Armor: Legendary Ironheart(set bonus, repair amp)
Shield: Legendary Crystalline Ward(ins\qulity megical res)
Weapon: legendary Celestial Beacon(Radiance SP and crit)
This gives Sound\Alignment SP, insightful sp and crit. Also some universal SP for Repair\Healing Spell. Gives equipment\ins\quality PRR\MPR. Healing\Repair amp. Enchantment\ins\quality const and Enchantment\ins cha. Bunch of AC from Natural Armor\Protection and set bonus. Some HP and base spell DC for less Reflex Saves from enemies.
If u have Legendary Collective Sight, you can craft 21 cha and 10 ins con. You will lose ins SP from Legendary Dusk Lenses. This will free trinket and cloak slots, so u can swap your gear for Legendary Lilting Song and Legendary Hallowed Trail to keep up with SP and crit, and will free your trinket slot. You can slot healing amp in trinket slot, there are Bloodrage Chrism or Memoriam, Slavelords with quality cha and Repair\Healing crit or whatever you want. If you go with Acid warlock, you can swap Legendary Burnscar Sash and Morninglord scepter or Spiral, the Voice of the Elements.
Feywild Dreamer
Goggles: Legendary Dusk Lenses(potency for healing and ins potency for healing and dmg)
Head: Legendary Arcsteel Brim(ins MRR, spell DC)
Neck: Resonation(more sound proc, quality MRR, elemental res). Can switch to Sigil of Regalport or The Zarash'ak Ward(3 slots and quality sp\ DCs\ int busts Spellcraft)
Trinket: Bell of warding(charisma, Sound SP and crit chance)
Cloak: Legendary Gossamer Weave(set)
Belt: Legendary Bronze Dragonscale Belt(con, heal amp, neg resistance, hp)
Ring1: Legendary Celestial Sapphire Ring(profane well rounded and possibly dex for saves) or Legendary Celestial Amethyst Ring(repair amp). Alternative: Legendary Spinneret, Lantern Ring, Stolen Signet of ir'Wynarn(3 slots, quality sp)
Ring2: Slavelods(68 hp, 14 resist, 4 quality const)
Hands: Legendary Delicate Thimbletips(set)
Bracers: Legendary Bracers of the Fallen Hero(ins const, qulity PRR)
Boots: The Shrouded Steps of the Beyond(15% ghoslty, 3 slot Filigrees); Can switch to Legendary Softsole Slippers for Ghostly and ins cha.
Armor: Legendary Glass Heart(set)
Shield: Legendary Giant's Platter(bunch of defense) or Legendary Resplendant Fury(to max Radiance crit chance and dps and ins cha).
Weapon: legendary Celestial Beacon(Radiance SP and crit)
So if you want go with more DPS on this build just switch gear, and you became decent trash cleaner.
PS: sorry for mess, I did lack some time to well organize it. Will add links to items lil bit later.