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Rathma Singularity Skeletal Mages Build - Diablo 3 RoS

Rathma Singularity Skeletal Mages Build - Diablo 3 RoS

One of the best Necromancer builds for Patch 2.6.4

Rathma Singularity Mages
Necromancer Build
Diablo 3 Patch 2.6.4

Rathma is one of the most powerful Necromancer class sets, while Rathma Singularity Mages is the strongest non-Corpse Lance based build for this class. It can reach Greater Rifts level 100 and above when played right. The build utilizes the 400% increased Minion damage bonuses provided by Jesseth's Arms set which combined with Rathma set bonus gives amazing DPS. It also scales extremely well with an increased number of Skeletal Mages summoned.

To check the full list of our Best Diablo 3 builds visit:  The Best Diablo 3 builds by Odealo

Arachyr Firebats Witch Doctor

Table of contents

  1. General information
  2. Recommended items
  3. Recommended skills

General information

The entire build is based on the Bones of Rathma set which provides the following bonuses:

  • Minions have a chance to reduce the cooldown of Army of the Dead by 1 second each time they deal damage (2/6)
  • Gain 1% damage reduction for 15 seconds each time one of the Minions deals damage, stacking up to 50 times (4/6)
  • Each active Skeletal Mage increases the damage of all minions and Army of the Dead by 1000%, up to 4000% (6/6)

Singularity Mages Rathma build is one of the strongest out of all Necromancer builds. It is also the recommended choice for all summoner-type characters fans. This build is based on increased minion damage by each summoned Skeletal Mage. That is why the Legendary ring Circle of Nailuj's Evol is so important, it not only double the number of summoned Skeletal Mages with each cast but also increases their duration nearly tripling the number of Skeletal Mages you can have summoned at a time. On top of that, we utilize the Jesseth's Arms 400% increased minion damage after using Command Skeletons ability. It is most important to summon as many Skeletal Mages and possible and keep the Jesseth's Arms buff at all times.
Like most of the Necromancer build you will be also using Krysbin's Sentence to greatly increase your DPS versus crowd-controlled (slowed, stunned, frozen) enemies.


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Recommended items

Equipment

Arachyr's Visage
Head - Rathma's Skull Helm
Stat priorities:
1) Critical Hit Chance
2) Socket
3) Intelligence
4) Increased Skeletal Mages damage
5) Vitality
6) Secondary Res.
Socket: 
Rathma's Ribcage Plate Chest - Rathma's Ribcage Plate
Stat priorities:
1) Intelligence
2) Vitality
3) Armour
4) Life%
5) Secondary Res.
Sockets: 
Rathma's Skeletal Legplates

Pants - Rathma's Skeletal Legplates
Stat priorities:
1) Intelligence
2) Vitality
3) Armor
4) Secondary Res.
Sockets: 

Rathma's Macabre Vambraces Gloves - Rathma's Macabre Vambraces
Stat priorities:
1) Attack Speed
2) Critical Hit Chance
3) Critical Hit Damage
4) Intelligence
5) Secondary Res.
Rathma's Ossified Sabatons Boots - Rathma's Ossified Sabatons
Stat priorities:
1) Intelligence
2) Vitality
3) Increased Skeletal Mages damage
4) Armor
5) Secondary Res.
Rathma's Spikes

Pauldrons - Rathma's Spikes
Stat priorities:
1) Intelligence
2) Vitality
3) Area damage%
4) Life%

Reaper's Wraps Bracers - Reaper's Wraps
Stat priorities:
1) Critical Hit Chance
2) Physical damage%
3) Intelligence 
4) Vitality
5) Secondary Res.
Special power:
Health globes restore 25–30% of your primary resource
Traveller's Pledge Amulet - Traveller's Pledge
Stat priorities:
1) Socket
2) Critical Hit Damage
3) Critical Hit Chance
4) Physical damage%
5) Intelligence
(Part of the Endless Walk set)
Set bonuses:
  • While moving, all damage taken is reduced by up to 50%
  • While standing still, all damage dealt is increased by up to 100%
Compass Rose Ring - Compass Rose
Stat priorities:
1) Socket
2) Critical Hit Chance
3) Critical Hit Damage
4) Attack Speed
5) Intelligence
6) Vitality
(Part of the Endless Walk set)
Circle of Nailuj's Evol

Ring - Circle of Nailuj's Evol
Stat priorities:
1) Socket
2) Critical Hit Chance
3) Critical Hit Damage
4) Attack Speed
5) Intelligence
Special power:
Raises an additional Skeletal Mage with each cast and they last an additional 2–4 seconds

Dayntee's Binding Belt - Dayntee's Binding
Stat priorities:
1) Intelligence
2) Vitality
3) Armor
4) Life%
5) Secondary res.
Special power:
Grants a 40–50% reduction in all damage taken as long as there is an enemy afflicted by one or more of the Necromancer's Curses
Jesseth's Skullscythe Weapon - Jesseth's Skullscythe
Stat priorities:
1) Socket
2) High average damage
3) Damage%
4) Attack Speed
5) Maximum Essence
6) Intelligence
Sockets: 
(Part of the Jesseth's Arms set)
Set bonuses:
  • When the target of Command Skeletons dies while Command is active, Skeletons are automatically Commanded to attack a nearby target. In addition, while Skeletons are Commanded to attack a target, all minions deal 400% increased damage (2/2)
Jesseth Skullshield Off-hand - Jesseth Skullshield
1) Critical Hit Chance
2) Intelligence
3) Vitality
4) Cooldown Reduction
(Part of the Jesseth's Arms set)
Bonus Items for Season 16
(thanks to built-in Ring of Royal Grandeur power)
Requiem Cereplate Chest - Requiem Cereplate
Stat priorities:
1) Intelligence
2) Vitality
3) Armour
4) Life%
5) Secondary Res.
Sockets: 
Special Power:
Devour restores an additional 75–100% Essence and Life, and if Devour restores Essence or Life above their respective maximum, the excess is granted over 3 seconds
Kanai Cube powers
Reilena's Shadowhook Reilena's Shadowhook
Every point of Maximum Essence increases all damage done by 0.5% and Bone Spikes generate 2–5 additional Essence for each enemy hit
Tasker and Theo Tasker and Theo
Increase attack speed of your pets by 40–50%
Krysbin's Sentence Krysbin's Sentence
Deal 75–100% increased damage against slowed enemies or triple this bonus against enemies afflicted by any other type of control-impairing effect
Legendary Gems
Bane of Trapped Bane of the Trapped
  • Increases damage done to enemies under the control-impairing effects by 15%
    Upgrade: +0.3% additional damage per Rank
  • Gain an aura that slows the movement speed of enemies within 15 yards by 30% (Requires Rank 25)
Zei's Stone of Vengeance Zei's Stone of Vengeance
  • Damage dealt to each enemy hit is increased by 4% for every 10 yards between you and the enemy hit. Maximum 20% increase at 50 yards. Upgrade: +0.08% additional damage for every 10 yards, and +0.40% maximum damage bonus per rank
  • 20% chance on hit to Stun the enemy hit for 1 second (Requires Rank 25)
Enforcer Enforcer
  • Increases the damage of your pets by 15% Upgrade: +0.3% damage per rank
  • Your pets take 90% less damage (Requires Rank 25)

Recommended skills

Active Skills

Bone Spikes
Bone Spikes
Summon bone spikes from the ground that deal 150% weapon damage
Sudden Impact
Bone spikes will also stun enemies for 1 second on hit

Your primary attack. It is used to generate Essence and stun enemies on hit, which increases the damage they receive thanks to Krysbin's Sentence ring
Simulacrum Simulacrum
Creates a Simulacrum made of blood that will duplicate any Essence Spenders cast for 15 seconds
Reservoir
While active, Simulacrum will also increase maximum Essence by 100%

This ability has a long cooldown and grants insane boost to your DPS for a short duration. Use it on bosses and hard elites
Skeletal Mages Skeletal Mage
Raise a skeleton from the ground to attack your foes dealing 400% damage as Physical over 2 attacks. Lasts 6 seconds
Singularity
Consumes all Essence when cast, but summons a much more powerful Skeletal Mage. The minion's damage is increased by 3% for each point of Essence consumed. Can raise up to 10 empowered Mages, each having its own damage buff for the duration

This builds core ability. It not only deals majority of the damage but also increases it with every summoned Skeletal Mage
Land of the Dead Land of the Dead
All corpse skills can be used at will for 10 seconds
Frozen Lands
Enemies in the Land of the Dead are frozen while it lasts

This skill provides amazing both defensive and offensive utility. It freezes all enemies within range (basically whole screen) grants insane Essence regeneration allowing summoning the most powerful Skeletal Mages and spamming the skill. Use on bosses, hard elites, and emergency situations
Devour Devour
Consumes all corpses within 60 yards to restore 10 Essence per corpse
Cannibalize
Each corpse consumed also restores 3% of maximum Life

Used to recover Life and Essence. While under the effect of Land of the Dead you will be able to instantly heal yourself and replenish your Essence.
Command Skeletons Command Skeletons
Passive: Raises skeletons from the ground every 2 seconds to a maximum of 7 skeletons. Skeletal minions deal 50% damage as Physical per attack
Active: Commands the skeletal minions to attack the target and increase their damage by 50% against the designated target
Freezing Grasp
Skeleton's damage type changes to Cold and their current target is frozen for 3 seconds

Mandatory skill for this build. Skeletons will not only deal decent damage (they are minions and benefit from both Rathma and Jesseth's Arms set bonuses) but also grant the Jesseth's Arms buff and freeze their target.
Passive Skills
Overwhelming Essence Overwhelming Essence
Increases the maximum Essence by 40
Final Service Final Service
Upon taking lethal damage, instead of dying, renders the Necromancer immune to all damage for 4 seconds. This passive will also sacrifice minions and heal the Necromancer for 10% of maximum Life for each minion sacrificed this way. This effect cannot occur more than once every 60 seconds
Life from Death Life from Death

Consuming a corpse has a 20% chance to spawn a Health Globe

Extended Servitude Extended Servitude
Increases the duration of Skeletal Mages and Revived minions by 25%


Shutting down the Auction House and implementation of Loot 2.0 system killed nearly all player-to-player trading in Diablo 3. However, you may still obtain Legendary and Set gear through Item Farming, Boosting and Greater Rift carry services which are offered on Odealo market.

We hope you will enjoy this build as much as we did. And see you soon in the world of Sanctuary.

If you have any ideas how this build could be improved, or if you have suggestions for other Necromancer Guides we should make, please let us know in the comments below.

Pictures used in this article are the intellectual property of Blizzard Entertainment.