Battle side by side with your Seneschal Companion
Wield the power of the Loom by acquiring your very own Seneschal Companion, which becomes available during the Seasonal Questline. In Zoltun’s vision the Seneschal compliments your adventures by engaging directly in the fight or aiding you dutifully on the sidelines.

Using magical Governing and Tuning Stones recovered from the Vaults and elsewhere in Sanctuary, augment your Seneschal to best suit your targeted build for Season of the Construct. Governing Stones determine which attacks your Seneschal can perform, while Tuning Stones will augment those skills and provide greater utility. 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.

Tuning and Governing Stones can be acquired in a few different ways. Complete Vaults to earn one random Tuning Stone and seek out Wardwoven Chests to earn additional Tuning Stones– both of which can be earned through various levels of the Season Journey. Both types also have a low chance to appear as drops when playing Vaults and Arcane Tremors. Defeating enemy Constructs within the Vaults will also grant Shattered Stone, which can be crafted into Governing and Tuning Stones at Jewelers found throughout Sanctuary.
To unlock the full power of the Stones, you will need to increase their raw power by levelling them. Collect or craft duplicates of the same Stones, fuse them together to grant experience and eventually level up your currently held Stones. Increasing the level of these stones increases the potency and ability of these attacks. Increasing the level of your Tuning Stones can add additional projectiles or augment the damage type they perform.
Once you’ve acquired your Seneschal, they’ll follow you everywhere in Sanctuary until Season of the Construct ends.
Below is a full list of the Governing and Tuning Stones available for the Seneschal Companion:
Governing Stones:
- Autodefense: The Seneschal Construct activates an antimaterial field around itself shooting down enemy projectiles. Can not shoot down Boss or Player projectiles.
- Bushwhack: Quickly ambush dealing damage to each target. May strike the same target multiple times.
- Firefly: Deploy a small construct that lands on the target and explodes 3 times, dealing damage.
- Focus Fire: The Seneschal Construct channels a ray of fire onto targets dealing damage to each over time.
- 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.
- Lightning Bolt: Launch a bolt of Lightning at the target dealing damage. Arcs to other targets dealing a portion of the original damage.
- 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.
- Slash: Pummel enemies in front of the Seneschal Construct dealing damage.
- Tempest: Electrically charge an enemy causing it to deal damage to themselves and additional enemies each second over time. If the enemy is killed, Tempest spreads to another enemy gaining for additional time and bonus damage. These bonuses are also applied if Tempest is reapplied onto the same enemy.
- Flash of Adrenaline: Administers a quick flash of adrenaline into the player, granting bonus damage for a duration.
Tuning Stone Abilities:
- Voluminous Support: The supported skill’s effect size is increased.
- Swift Support: The supported Skill gains an Attack Speed bonus.
- 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.
- 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.
- Devastation Support: Supported Skill gains a Critical Strike Damage bonus.
- Safeguard Support: When used, the supported Skill grants Damage Reduction to you.
- Frigid Support: A portion of the supported Skill’s damage dealt is applied as Cold damage over time and applies Chill.
- Burning Support: A portion of he supported Skill’s damage is applied as Burning damage over time. Burning enemies take bonus Critical Strike Damage from the Seneschal Construct.
- 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.
- 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.
- Resource Support: Player gains an amount of Primary Resource when the supporting Skill first deals damage.
- 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 seconds.
- Arcing Support: The supported Skill can hit additional enemies.
- Multishot Support: Supported Projectile skills launch additional projectiles.
- Piercing Support: The supported Projectile Skill will pierce multiple enemies.
- 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.
- 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.
- Seeking Support: The supported Projectile Skill will auto-seek enemies for a limited duration.
- 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.
- 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.
Scholars have spoken in hushed whispers concerning rumors of fabled Tuning Stones, far beyond the capable power of mere mortals. Their existence is ephemeral, never confirmed by a dignified mage of high ranking. All that is known of them is writ below:
- Evernight: ???
- Genesis: ???

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The Seneschal Companion in Diablo 4 promises to be a game-changer, adding a whole new layer of customization and strategic depth to your adventures. Here’s what we know so far:
Acquisition:
- Available during the Seasonal Questline of Season of the Construct.
- Follows you throughout Sanctuary until the season ends.
Abilities:
- Can engage directly in combat with unique attacks determined by Governing Stones.
- Offers support and utility through a variety of effects governed by Tuning Stones.
- You can equip 2 Governing Stones and 6 Tuning Stones for maximum customization.
Tuning Stones:
- 27 different options exist, offering diverse effects including:
- Damage boosting (Voluminous, Swift, Breaking, Devastation)
- Defense and control (Tactical, Efficiency, Safeguard, Frigid, Burning, Electrocution, Bleeding, Poison, Dusk)
- Mobility and manipulation (Duration, Fortify, Resource, Initiative, Arcing, Multishot, Piercing, Gripping, Registered Damage, Seeking, Slowing, Mockery)
- Can be acquired through Vaults, Wardwoven Chests, drops, and crafting.
- Leveling them up enhances their potency and unlocks additional effects.
Customization and Synergy:
- Experiment with different combinations of Governing and Tuning Stones to tailor your Seneschal to your specific build and playstyle.
- Consider how different Tuning Stones synergize with each other and your own skills to create powerful combos.
Strategic Potential:
- The Seneschal can be a valuable offensive weapon, a defensive shield, or a tactical asset depending on your choices.
- Coordinate with your team to ensure your Seneschal’s abilities complement your allies’ strategies.
Here are some additional thoughts and questions about the Seneschal Companion:
- Do certain Governing Stones require specific Tuning Stones to function?
- Are there limitations on how many times you can use your Seneschal’s active abilities?
- How does the Seneschal’s AI behave in different situations?
- How will the different Seneschal builds impact the overall game balance?
I’m excited to see how players utilize the Seneschal Companion to personalize their gameplay and conquer the challenges of Diablo 4. What are your thoughts and predictions about this intriguing feature? Feel free to share your ideas and questions, and let’s delve deeper into the exciting world of Seneschal customization!
Together, we can unleash the full potential of our robotic companions and forge new paths to victory in Sanctuary!