Gothem’s Dark Knight
3 Socket Barbarian helms only
Mal Io Cham
3 - 5 to Barbarian skills varies
3 - 5 to Concentrate varies
3 - 5 to Masteries varies
+40% - +80% to all resistances varies
+50% to magic resistance
1% Deadly Strike/clvl
150% Faster run/walk
+10 to Vitality
+2 - +3 Vitality/clvl varies
Cannot be Frozen
Changes Character to a dark cloaked figure.
Jupiter’s Reign
2 socket Helms, Spears
Gul El
50% faster run/walk Helms only
75% faster run/walk Spears only
50% chance to cast level 50 hydra on hit
+5 - +10 to fire mastery spears only varies
+20 to armegeddon helms only
+50% ias
2 dex/clvl helms only
4 str/clvl spears only
+1 to Charge spears only
Damage reduced by 250 helms only
+250 - + 350 damage spears only
Level 80 molten boulder 30 charges helm only
Level 60 enchant charges 3 spears only
I’m guessing you already know, but that is so overpowered 
Yes let the power creep set in!
Smilin Bob’s Seceret
2 socket items ( any item )
El + El
50% chance to cast level 1-50 bone spear on attack
50% chance to cast level 1-50 bone spear on hit
50% chance to cast level 1-50 bone spear when hit
50% chance to cast level 1-50 bone spear when walking/running
50% chance to cast level 1-50 bone spear on block
100% chance to cast level 1-50 bone spear on level up
100% chance to cast level 1-50 bone spear on death
Here is a new (and very expensive) runeword that would complement the Amazon’s melee skills while also giving the option for Barbarians to pursue Spear Mastery from his repertoire…
Spear of Atrophy
Spear Class
SHAEL + UM + GUL + UM + LO + ZOD
33% Chance To Cast Level 20 Amplify Damage On Striking
+2 To All Skills
20% Increased Attack Speed
350-400% Enhanced Damage
20% Bonus to Attack Rating
20% Chance of Deadly Strike
50% Chance of Open Wounds
15% Life Stolen Per Hit
Indestructible
6 high runes runeword to get better rune drops… You should probably apply for a job on the Diablo Immortal team 
Must be a nice addition for botters 
People here are just spamming random runewords without any thought process behind them.
Probably some ground rules are needed:
Charsi’s Fellowship
Amn Lem Ber
3 socket helms, armors, shields
200% enhanced damage
+5 defense/clvl
+100 - +200 life varies
Damage reduced by 2/clvl
200% Gold from monsters
14% life stolen per hit
+15% - +25% all resistances
+25% magic resistance
50% faster run/walk (armor only)
Damage reduced by 0.5% /clvl (helmets only)
+6 to offensive Auras Paladin only (shields only)
Gheed’s Fable
Ist Ist
2 socket Items (any)
+1 to all skills
+3 to fire skills
+3 to cold skills
+3 to lightning skills
+3 to magic mastery
-10% enemy magic resistances
+10% - +25% faster cast rate Varies
+200% chance to find magic items
+300% chance to find gold from monsters
Witch Hunter’s Devotion
Jah Ohm
2 socket claws
+4 to Assassin skills
+300 damage
+150 minimum damage
+25 attack rating/clvl
+40% Fire Damage
+40% Cold Damage
+40% Lightning damage
+80% poison damage
+50% faster attack speed
+65% faster run walk
flamme bleue
Ohm Cham
2 Socket Shields, Helms
+600 defense
Level 20 Holy Freeze Aura when equipped
+3 to Cold mastery
+20% cold damage
Damage reduced by 15%
+30% - +60% all resistances
+15% magic resistances
+300 to life
+40 to vitality
+500 to Mana
+50 to Energy
Warriv’s Traveler
Io Io Zod
3 socket armors
3% faster run walk/clvl
100% faster cast rate
200% faster hit recovery
Absorbs cold, light, fire 0.5% clvl
Absorbs cold, light, fire 1 / clvl
+1 to energy shield
+1000 mana
+100 to energy
+80 to vitality
Indestructable
Akara’s Kiss
2 socket helms
Ral Mal
Level 50 prayer when equiped
+200 life regen
+5 to warmth
+100% poison res
+100% fire res
+15% maximum fire res
Smite - SolBerGulIthShael
Swords and Axes
Fanaticism 16-18
Damage 350-450%
Barb skills 2-4
Min Damage +9
Lifesteal 8-10%
Resist All 15%
Ignore Defense
I’ve also made it so that gloves belts and boots can have up to 3 sockets.
Arreat’s Teaching
3 socket weapons
Lo Io Eth
+4 to barbarian skills
+4 to masteries barbarian only
+1 to Whirl Wind
365% enhanced damage
35% ias
+300 to maximum damage
80% chance of deadly strike
-200% enemies defense
+200 to vitality
Scourge
4 socket hammers maces scepters
Shael Ber Lo Ohm
+4 to all skills
+450% enhanced damage
+400 - +800 attack rating
+120% increased attack speed
+40% deadly strike
+40% crushing blow
Level 15 Blessed Aim aura when equiped
+50 - +200 damage
+250 to life
Repairs durability
Both of those things mean the same thing.
Prayer
3 Socket shield Um + Shael + Mal (ladder only)
+160% Enhanced Defense
+Damage Reduced By 20
+250 Defense Vs. Missile
+All Resistances +35%
+30% Faster Block Rate
+25% Faster Hit Recovery
Cannot be Frozen
Level 9 Prayer Aura When Equipped
5% Chance To Cast Level 17 Twister On Striking
Minerva
Cham Vex Jah Jah
4 Socket Armors
+40% Absorb Fire, Cold, Lightning
+50% Magic resistances
Poison duration reduced by 50%
Level 20 Salvation aura when equiped
65% faster run/walk
120% faster block rate
Adds 2500 - 5000 magic damage to attack
+400 life
+100 mana
Cannot be frozen
Jesters Battle Gear
2 socket helm, body armor, shields
Um Pul
+50 - +300 Defense
+5% - +50% faster run/walk
+20% - +80% faster hit recovery
+30% - +150% enhanced defense
+15% all resistances body armor and helm
+22% - +60% all resistances Shield only
+1 - +5 Battle orders Shields only
Level 1 - level 5 Might Aura when equiped Helm only
Level 1 - level 5 Concentration aura when equiped body armor only
Call of the Wild
3 socket druid pelts
Vex Sur Ber
+4 - +8 to all skills
+6 to elemental skills
+8 to summoning skills
+10 to Shape Shifting skills
+200 - + 800 to life
Damage reduced by 35%
+80% faster run/walk
+10% - +30% all resistences
+5% - +35% faster cast rate
Nirvana
3 socket helms
Ko ko ko
+60 to dexterity
+30 to strength
+30 to vitality
+30% to all resistances
+3 to dexterity /clvl
+200% faster hit recovery
Godess’ Trinity
2 socket orbs
Zod el
+2 - +8 to Sorceress skill levels
+4 to cold mastery
+4 to fire mastery
+4 to lightning mastery
+50% cold damage
+50% fire damage
+50% lightnin damage
-50% - -100% enemy resistance to random element
+40% - +80% faster cast rate
+2000 mana
-1000 life
Death’s Advocate
2 Socket knives
+4 to Necromancer skills
+8 to poison dagger necromancer only
+200% frw
+200% increased attack speed
-200% enemy poison resistances
+20 ar/clvl
+100 damage
Sanctuary’s Salvation
4 socket shields
+400 defense
+100 - 175% enhanced defense
+50% increased chance to block
+100% to all resistances
+200 - +400 damage reduction
+300 - +600 magic damage reduction
+100 to vitality
+500 to life
Repairs durability
Thirst
3 Socket Helms Lum + Io + Hel (Ladder only)
+90% Enhanced Defense
+1 To All Skill Levels
+25 To Vitality
+15 To Energy
+10% To Maximum Cold Resist
Requirements -30%
10% Chance To Cast Level 12 Life Tap When Struck
8% Chance To Cast Level 14 Teeth When You Kill An Enemy
Credibility
3 socket Armor Pul + Cham + Jah
+180-220% Enhanced Defense
+3-4 To Javelin and Spear Skills (Amazon Only)
+2 To Valkyrie Skill (Amazon Only)
+40% Faster Hit Recovery
+Cannot Be Frozen
+Damage Reduced By 8-12% (varies)
+increase maximum Life 5%
+Level 8 Battle Orders Aura When Equipped
+All Resistances +50
good armor for Plauga Amazon build.
Virtuoso
3 socket barbarian helms
2% attack rating /clvl
+500 defense
+5 to war cries
+5 to war cry
+500 life
+500 mana
+50% faster cast rate
Wings of Hope
2 socket wands Vex + Ber
+3 To All Skills
+50% Faster Cast Rate
+7% Mana Stolen Per Hit
+25% Chance of Crushing Blow
+7% Chance To Cast Level 10 Fade When Struck
+25 To Vitality
+75% Better Chance of Getting Magic Items
+10% to Life
All resistance +30
+8-15% To Fire Skill Damage