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Seneschal Construct

From Diablo 4 Wiki

What is the Seneschal Construct?

The Seneschal Construct is a companion added to Diablo 4 for Season 3: Season of the Construct. This companion functions in a similar way to Mercenaries in Diablo 2 and Followers in Diablo 3.

This Construct will grow with you in power and has many different abilities to complement a player's build. This power scaling is one-to-one with the player so it feels like an extension of the player.

Once you’ve acquired your Seneschal, they’ll follow you everywhere in Sanctuary until Season of the Construct ends. They can not be killed but they can be staggered.

Seneschal Construct
Seneschal Construct

Where can I get the Seneschal Construct?

During the Season 3 questline, players will find a broken Seneshal which will be repaired by Ayuzhan and becomes your companion.

How to customise the Seneschal Construct

Governing and Tuning Stones Screen
Governing and Tuning Stones Screen

The Seneschal Construct's abilities are dicated by the Tuning and Governing Stones which player acquire in the Season 3 questline or from drops.

Governing Stones which are the primary effect Core Construct ability can be picked up in the questline of Season 3.

Tuning Stones which augment the Governing Stones, are acquired through the Seasonal content. It's s single modification for any number of Governing Stones.

  • The player can add 2 different Governing Stones to the Seneschal.
  • Each Governing Stone can be modified by up to three Tuning Stones.

The Seneschal can either play a support role or do direct damage.

How to Get Tuning and Governing Stones

  • A single random Tuning Stone can be acquired by completing a Vault.
  • Governing Stones are acquired through the Seasonal questline.
  • There's a lower chance of Tuning Stones and Governing Stones dropping during Arcane Tremors and Vaults. However, Arcane Tremors have proved a quick and effective way to get Tuning Stones.
  • Tuning Stones and Governing Stones can also be crafted at the Jeweler.

Below is the full list of Tuning and Governing Stones that can be acquired and applied to your Seneschal Construct.

Governing Stones

All statistics are for Level 10 Governing Stones.

<< Click Heading to Sort >>
Name Effect Arcing Channeled Cooldown Duration Melee Ranged Projectile Utility
Autodefense The Seneschal Construct activates an antimaterial field around itself shooting down up to 30 enemy projectiles. Last for 5 seconds. Can not shoot down Boss or Player projectiles.

Speed: 1.5 seconds
Cooldown: 25 seconds

Bushwhack Quickly ambush up to 2 targets dealing 1,989 damage to each. May strike the same target multiple times.

Speed: 1.5 seconds
Damage: Physical

Firefly Deploy a small Firefly construct that lands on the target and explodes 3 times after 1.25 seconds dealing 912 - 2,553 damage.

Speed: 3.5 seconds
Damage: Fire

Flash of Adrenaline Administers a quick clash of adrenaline into the player, increasing damage dealt by x 20% for 8 seconds.

Speed: 1.5 seconds
Cooldown: 20 seconds

Focus Fire The Seneschal Construct channels a ray of fire onto 2 targets dealing 7,958 total damage to each over 3 seconds.

Speed: 3 seconds
Damage: Fire

Gyrate The Seneschal Construct whirls its legs around quickly dealing 5,173 damage to all nearby enemies.

Speed: 2 seconds
Damage: Physical

Impale Perform a line attack to all enemies in front of the Seneschal Construct dealing 7,759 damage.

Speed: 1.5 seconds
Damage: Physical

Lightning Bolt Launch a bolt of Lightning at the target dealing 1,989 damage. Arcs to 1 target dealing 35% of the original damage.

Speed: 1.5 seconds
Damage: Lightning

Protect The Seneschal Construct materializes a protective Barrier on the player for 0.5% of their Maximum Life Lasts for 5 seconds.

Speed: 1.5 seconds
Cooldown: 20 seconds

Pummel Pummel enemies in front of the Seneschal Construct dealing 4,742 damage.

Speed: 1.5 seconds
Damage: Physical

Reconstruct The Seneschal Construct channels a reconstruction beam Healing the player for 50% of their Maximum Life over 3 seconds.

Speed: 1.5 seconds
Cooldown: 20 seconds

Tempest Electrically charge an enemy causing it to deal 2,006 damage to themselves and 1 additional enemy each second over 5 seconds.

If the enemy is killed, Tempest spreads to another enemy.
Speed: 1 second
Damage: Lightning

Name Effect Arcing Channeled Cooldown Duration Melee Ranged Projectile Utility


Tuning Stones

All statistics are for Level 10 Tuning Stones.

<< Click Heading to Sort >>
Name Effect Cooldown Melee Ranged Projectile Utility
Arcing Support The supported Arcing skill can hit 10 additional enemies.
Bleeding Support 60% of the supported skill's damage dealt is applied as Bleeding damage over 5 seconds (DoT). Enemies take x 10% Bleeding bonus damage from all sources while moving.

Damage: Physical

Breaking Support Damage from the supported skill instantly destroys enemy Barrier effects. In addition, there is a 100% chance to make enemies Vulnerable for 2 seconds.
Burning Support 60% of the supported skill's damage is applied as Burning damage over 5 seconds (DoT). Burning enemies take x 20% Critical Strike Damage from the Seneschal Construct.

Damage: Fire

Devastation Support Supported skill gains a x 75% Critical Strike Damage bonus.
Duration Support Supported Duration skills have their durations increased by 4 seconds.
Dusk Support 60% of the supported skill's damage dealt is applied as Shadow damage over 5 seconds. Afflicted enemies who attack have a 15% chance for their attacks to be interrupted. Does not interrupt Bosses.

Damage: Shadow

Efficiency Support When the supporting skill deals damage, you gain + 15% Critical Strike Chance to the same targets hit for 3 seconds.
Electrocution Support 60% of the supported skill's damage dealt is applied as Lightning damage over 5 seconds and has a 15% chance to Stun (CC) enemies for 2 seconds.

Damage: Lightning

Fortify Support When the Seneschal Construct uses the supported skill, you gain 167 Fortify. Skills with slower attack speeds or skills with cooldowns will increase the amount of Fortify granted.
Frigid Support 60% of the supported skill's damage dealt is applied as Cold damage over 5 seconds and applies 35% Chill.

Damage: Cold

Gripping Support Damage and effects done by the supporting skill to Distant enemies Pulls (CC) them towards the Seneschal Construct. Can only occur once every 10 seconds per enemy.
Initiative Support The supported skill will cause the Seneschal Construct to teleport to the target if out of range.
Mockery Support Damage done by the supporting skill Taunts enemies hit for 4 seconds. This can only occur once every 15 seconds per enemy. Does not work on bosses.
Multishot Support Supported Projectile skills launch 4 additional projectiles.
Piercing Support The supported Projectile skill will pierce up to 11 enemies.
Poison Support 60% of the supported skill's damage dealt is applied as Poison damage over 5 seconds. This poison has a 20% chance each second to spread all Poison damage to an additional enemy.

Damage: Poison

Registered Damage Support Any damage caused from the supported skill is registered. The registered damage explodes at 50% effectiveness when the target dies as Fire damage.

Damage: Fire

Resource Support Player gains 20 Primary Resource when the supporting skill first deals damage.
Safeguard Support When used, the supported skill grants x 15% Damage Reduction to you for 3 seconds.
Seeking Support The supported Projectile skill will Auto-Seek enemies for 7.6 seconds.
Slowing Support Damage from the supported skill Slows (CC) enemy movement speed for 2 seconds. The closer the enemy is to the Seneschal Construct, the greater the Slow amount. From 30% up to a maximum of 80% Slow to Close enemies.
Swift Support The supported skill gains a 40% Attack Speed bonus.
Tactical Support Decrease the cooldown of the supported skill by x 40%.
Voluminous Support The supported skill's effect size is increased by 50%.
Name Effect Cooldown Melee Ranged Projectile Utility

Unique Tuning Stones

<< Click Heading to Sort >>
Name Effect Cooldown Melee Ranged Projectile Utility
Evernight The supporting Skill grants you +4 to all skills when used for 2.0 seconds.
Genesis Increase the effectiveness of the supported Skill by 150%.


Can you pet the Seneschal Construct?

Yes you can.

A Sorcerer pets her Seneschal Companion

Changes to Seneschal Constructs

Patch 1.3.3, March 5, 2024

Developer’s Note: We want the Seneschal to feel strong, but there are certain powers that are overperforming. Additionally, there are a couple of unintended interactions that are being addressed.

Poison Support

  • Poison Support no longer reapplies the Construct's damage bonuses when it spreads, matching the functionality of the other damage over time Tuning Stones.

Bleeding Support

  • Bonus Bleeding damage from 20% to 10%.

Burning Support

  • Bonus Critical Strike damage from 20% to 10%.
  • Bonus Critical Strike damage per Skill Rank from 2% to 1%.

Tempest

  • Tempest no longer gains bonus damage and duration when it's reapplied or when it spreads.