Diablo 4: Companion - Seneschal Construct Season 3 Guide. How to build the best Pet for all classes

How to build the best Pet in Diablo 4

Season 3 name has just been announced as Season of the Construct in Diablo 4 and with it there’s quite a few new things added to the game. Some of which are New Questline and Zone, New Boss and monsters, New Dungeons: Vaults, Companions: Seneschal Construct and some of the best if not THE BEST Quality of Life updates since release.

This article will focus on the new Pet System - Companions: Seneschal Construct and show you how to build the best Pet.

This Guide shows, how to unlock companions in Diablo 4, which are the best Pet Powers, how to level your Seneschal Construct and where to find Governing and Tuning Stones.

This guide also includes:

the best builds for every class
the best Tunning Stones
the best Governing Stone

To find out everything else we know about Season 3 in Diablo 4 check out:

⬜ Season 3: Battle pass and Season Journey - rewards (opens in new tab)

⬜ Diablo 4: Season of the Construct - Patch Notes (opens in new tab)

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Best Pet build Guide in Diablo 4 for EVERY CLASS. Top Seneschal Companion Tunning/Governing Stones

Your Seasonal companion: Seneschal Construct

Season 3 brings a new mechanic, the companion system in Diablo 4.

With Ayuzhan's help, the Wanderer revives an uncorrupted Seneschal Construct, and it becomes their Seasonal Companion.

“How to unlock pets or Seneschal Construct companions in Diablo 4?”

The Seneschal Construct companion unlocks during the Seasonal Questline.

Using the Stones recovered from Vaults, you can craft Companion abilities to augment their own combat skills and to enhance Vault exploration.

The Seneschal Construct is a highly customizable pet-like Seasonal Companion:

Once acquired, it follows the Character everywhere until Season 3 ends.
It uses its abilities independently of the Character but can create combo opportunities.
Its base stats scale with the Character.
It does not have health, so it cannot die but it has a stagger/stun like delay.

Companion Mechanics

The Seneschal has two attacks/skills.

Players upgrade the Seneschal's attacks by modifying Stones in its Cryptex:

Governing Stones dictate the attack type.
Tuning Stones. These augment the Governing Stones by adding additional mechanics such as shooting additional projectiles or changing the damage type entirely.

“Where to find Seneschal Stones?”

Governing stones can be acquired from season’s questline, Vaults, Wardwoven Chests, Season Journey, completing Whispers and by crafting with Shattered Stones at the Jeweler. (Defeating enemy Constructs within the Vaults will also grant Shattered Stones)

Tuning stones can be acquired from Season Journey, seasonal content, Vaults, completing Whispers and by crafting with Shattered Stones at the Jeweler.

Son of Malphas (new boss) now always drops 2-3 Governing and Tuning Stones.

Updated:

Crafting a Governing or Tuning Stone will now always cost 200 Shattered Stone and 20 Iron Chunks regardless of level.
Finding a max level Governing or Tuning Stone will now grant 150 – 200 Shattered Stone.

You can equip your Seneschal with 2 Governing Stones and 6 Tuning Stones, one Governing stone for each attack and three Tuning Stones to augment the ability. There are 12 Governing Stones and 27 different Tuning Stones of different rarities to seek out in the Vaults to unlock the full power of the Seneschal construct.

“How to level up the Tuning and Governing Stones for the Seneschal Construct companion?”

To level up the Tuning and Governing Stones collect or craft duplicates of the same Stones and merge them together to increase the experience and eventually level up your base Stones.

Increasing the level of the stones increases the potency and ability of the attacks.

Increasing the level of the Tuning Stones can add additional projectiles or augment the damage type the have.

Building your Seasonal Companion

Building your Seasonal Companion use Governing & Tuning Stones to create the perfect Seneschal Construct.

Governing & Tuning Stones are variants of Paragon glyphs, they are not items:

Governing Stones do not have a Level or Rarity, only need to be acquired once.
Tuning Stones have Level and Rarity, and improve linearly with level.

The Seneschal's Cryptex appears as a Seasonal Inventory tab, similar to the Sanguine Circle in Season 2.

From this, players can easily swap Governing and Tuning Stones for their Companion.

Pet Cryptex

Governing Stones

Found in Season Questline

Tuning Stones

Found in Seasonal Content

Potency Support

Tuning Stone Example

Duration Support

Tuning Stone Example

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Obtaining Stones:

Vaults
— Vault Runs guarantee one random Level-Scaled Tuning Stone.
— Vault Runs offer Wardwoven Chests which award bonus Tuning Stones or Equipment
Defeating Constructs
— Defeating Constructs offer very rare chance of Tuning Stones drop.
— Defeating Constructs will always drop a percentage of Shattered Stone which can be crafted into Stones at the Jeweler.

Pet Attack/Skills examples

Pet Skill: AoE

Throws 3 Projectiles that deal AoE damage to monsters.

Pet Skill: Focused Fire

Channeled Ray of Fire that can chain multiple enemies.

The best Seneschal Construct builds in Diablo 4 for every class

“MisterMen What is the best Pet Build in Season 3?”

The best Seneschal Construct build comes down to your class and your build with that class.

Here is a general idea on what are the best Stones for every class:

Best Seneschal Companion build for Barbarian

Governing Stone 1 – Reconstruct
- Tuning Stone 1 – Genesis
- Tuning Stone 2 – Tactical Support
- Tuning Stone 3 – Duration Support
Governing Stone 2 – Flash of Adrenaline
- Tuning Stone 1 – Evernight
- Tuning Stone 2 – Fortify Support
- Tuning Stone 3 – Safeguard Support

Best Seneschal Companion build for Sorcerer

Governing Stone 1 – Protect
- Tuning Stone 1 – Genesis
- Tuning Stone 2 – Safeguard Support
- Tuning Stone 3 – Fortify Support
Governing Stone 2 – Tempest
- Tuning Stone 1 – Evernight
- Tuning Stone 2 – Electrocution Support
- Tuning Stone 3 – Arcing Support

Best Seneschal Companion build for Necromancer

Governing Stone 1 – Reconstruct
- Tuning Stone 1 – Genesis
- Tuning Stone 2 – Fortify Support
- Tuning Stone 3 – Safeguard Support
Governing Stone 2 – Firefly
- Tuning Stone 1 – Evernight
- Tuning Stone 2 – Multishot Support
- Tuning Stone 3 – Breaking Support

Best Seneschal Companion build for Rogue

Governing Stone 1 – Flash of Adrenaline
- Tuning Stone 1 – Genesis
- Tuning Stone 2 – Tactical Support
- Tuning Stone 3 – Fortify Support
Governing Stone 2 – Bushwhack
- Tuning Stone 1 – Evernight
- Tuning Stone 2 – Efficiency Support
- Tuning Stone 3 – Devastation Support

Best Seneschal Companion build for Druid

Governing Stone 1 – Protect
- Tuning Stone 1 – Genesis
- Tuning Stone 2 – Duration Support
- Tuning Stone 3 – Safeguard Support
Governing Stone 2 – Focus
- Tuning Stone 1 – Evernight
- Tuning Stone 2 – Resource Support
- Tuning Stone 3 – Mockery Support

“Which are the best Pet/Companion Powers in Diablo 4?”

Here is a full list of the Governing and Tuning Stones available for the Seneschal Companion:

Best Governing Stones in Diablo 4 (best to worst):

Protect – The Seneschal Construct materializes a protective Barrier on the player for a portion of their Maximum Life.
Reconstruct – The Seneschal Construct channels a reconstruction beam Healing the player for a portion of their Maximum Life over time.
Flash of Adrenaline – Administers a quick flash of adrenaline into the player, granting bonus damage for a duration.
Focus – Fire The Seneschal Construct channels a ray of fire onto targets dealing damage to each over time.
Tempest – Electrically charge an enemy causing it to deal damage to themselves and additional each second over time. If the enemy is killed, Tempest spreads to another enemy gaining additional time and bonus damage. These bonuses are also applied if Tempest is reapplied to the same enemy.
Lightning Bolt – Launch a bolt of Lightning at the target dealing damage. Arcs to other targets dealing a portion of the original damage.
Gyrate – The Seneschal Construct whirls its legs around quickly dealing damage to all surrounding enemies.
Impale – Perform a line attack to all enemies in front of the Seneschal Construct dealing damage.
Firefly – Deploy a small construct that lands on the target and explodes 3 times, dealing damage.
Slash – Pummel enemies in front of the Seneschal Construct dealing damage.
Bushwhack – Quickly ambush dealing damage to each target. May strike the same target multiple times.
Autodefense – The Seneschal Construct activates an antimaterial field around itself shooting down enemy projectiles. Can not shoot down Boss or Player projectiles.

Best Tuning Stone Abilities in Diablo 4 (best to worst ):

Genesis – Increase the effectiveness of the supported Skill by 150%.
Evernight – The supported Skill grants you +4 to all Skills when used for 2.0 seconds.
Duration Support – Supported Skills have their durations increased.
Fortify Support – When the Seneschal Construct uses the supported Skill, you gain Fortify. Skills with slower attack speeds or skills with cooldowns will increase the amount of Fortify granted.
Safeguard Support – When used, the supported Skill grants Damage Reduction to you.
Resource Support – Player gains an amount of Primary Resource when the supporting Skill first deals damage.
Tactical Support – Decrease the cooldown of the supported Skill.
Efficiency Support – When the supporting skill deals damage, you gain Critical Strike Chance to the same targets hit.
Multishot Support – Supported Projectile skills launch additional projectiles.
Arcing Support – The supported Skill can hit additional enemies.
Swift Support – The supported Skill gains an Attack Speed bonus.
Devastation Support – Supported Skill gains a Critical Strike Damage bonus.
Seeking Support – The supported Projectile Skill will auto-seek enemies for a limited duration.
Piercing Support – The supported Projectile Skill will pierce multiple enemies.
Voluminous Support – The supported skill’s effect size is increased.
Registered Damage Support – Any damage caused from the supported Skill is registered. The registered damage explodes at effectiveness when the target dies as Fire damage.
Burning Support – A portion of the supported Skill’s damage is applied as Burning damage over time. Burning enemies take bonus Critical Strike Damage from the Seneschal Construct.
Frigid Support – A portion of the supported Skill’s damage dealt is applied as Cold damage over time and applies Chill.
Electrocution Support – A portion of the supported skill’s damage dealt is applied as Lightning damage over time and has a chance to Stun enemies.
Bleeding Support – A portion of the supported skill’s damage dealt is applied as Bleeding damage over time. Enemies take bonus Bleeding damage from all sources while moving.
Poison Support – A portion of the supported skill’s damage dealt is applied as Poison damage over time. This poison has a chance each second to spread all Poison damage to an additional enemy.
Dusk Support – A portion of the supported Skill’s damage dealt is applied as Shadow damage over time. Afflicted enemies who attack have a chance for their attacks to be interrupted. Does not interrupt Bosses.
Mockery Support – Damage done by the supporting Skill Taunts enemies hit for a limited duration of time. This can only occur once every so often per enemy. Does not work on bosses.
Gripping Support – Damage and effects done by the supporting Skill to Distant enemies pulls them towards the Seneschal Construct. Can only occur once every so often per enemy.
Breaking Support – Damage from the supported Skill instantly destroys enemy Barrier effects. In addition, there is a chance to make enemies Vulnerable for 2 seconds.
Slowing Support – Damage from the supported Skill Slows enemy movement speed for a limited duration. The closer the enemy is to the Seneschal Construct, the greater the Slow amount. Enemies may be slowed up to a maximum amount.
Initiative Support – The supported Skill will cause the Seneschal Construct to teleport to the target if out of range. Can only occur once every so often.

Season of the Construct Patch Notes 1.3.1

The following updates have been applied to the Seneschal's abilities:

Gyrate: Damage increased by 30%.

Pummel: Damage increased by 30%.
Bushwhack: Damage increased by 20%.
Impale: Damage increased by 30%.
Focus Fire: Damage increased by 20%.
Lightning Bolt: Damage increased by 20%.
Firefly: Damage increased by 10%.
Tempest: Damage increased by 10%.
Reconstruct: Healing increased from 22% to 32% of Maximum Life at level 1. At level 10, the healing is increased from 40% to 50% of Maximum Life.
Frigid Support: Damage increased from 50% to 60% of the Supported Skill's Damage.
Bleeding Support: Damage increased from 50% to 60% of the Supported Skill's Damage.
Electrocution Support: Damage increased from 50% to 60% of the Supported Skill's Damage.
Poison Support: Damage increased from 50% to 60% of the Supported Skill's Damage.
Dusk Support: Damage increased from 50% to 60% of the Supported Skill's Damage.
Burning Support: Damage increased from 50% to 60% of the Supported Skill's Damage.

Thanks for reading! This Guide will be furthermore updated when Season 3 releases and as we learn more about companions.

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