Confronting the Uber Malphas and Acquiring the Rare Tuning Stones in Diablo 4 Season 3

Key Takeaways

• Entry to the Vault of the Loom required 7 Igneous Cores (from Heralds of Malphas) and 250 Shattered Stones (from Vaults, Arcane Tremors, and Construct enemies).
• Zoltun's Warding stacks, purchased at the Statue of Zoltun Kulle, protected against traps — including during the Echo of Malphas fight itself.
• The Vault contained 4 minor sub-Vaults before the boss room, each with 2 Wardwoven Chests costing 1 Warding stack to open.
• Echo of Malphas had a 0.5% chance to drop Unique Tuning Stones; the two post-boss Wardwoven Chests added a 3% chance each and required 14 stacks combined.
• Conduit management during the boss fight was critical — more than 2 active at once created unmanageable trap density.
• The strongest Seneschal companion setup paired Flash of Adrenaline, Tactical Support, Duration Support, and Genesis for a sustained 50% damage bonus.

Season 3 introduced one of Diablo 4's most elaborate endgame encounters: the Vault of the Loom and its final boss, the Echo of Malphas. This guide covers how entry worked, what players encountered inside the Vault, and how to build around the Unique Tuning Stones the boss could drop.

Accessing the Vault of the Loom

Entry required two types of summoning materials: 7 Igneous Cores and 250 Shattered Stones. Igneous Cores dropped from Heralds of Malphas — demon enemies summoned at Braziers scattered across the Arcane Tremors open-world area. Shattered Stones came from defeating Construct-family monsters and clearing content in Vaults and Arcane Tremors. Once players had both materials, they traveled to the Gatehall in Kehjistan to reach the Vault entrance.

Inside the Vault of the Loom

Just past the entrance, the Statue of Zoltun Kulle allowed players to spend resources on Zoltun's Warding stacks. Each stack acted as a shield against one trap hit — the effect carried through the Echo of Malphas fight as well. Before advancing, players also had to offer the Igneous Cores at the Corrupted Altar; skipping this disabled the Statue and blocked further Warding purchases. Groups needed to complete this step before moving on so that every player had their stacks secured.

The Vault layout held 4 minor sub-Vaults before the boss room. Each minor Vault contained 2 Wardwoven Chests, each costing 1 Warding stack to open. After defeating Echo of Malphas, 2 more Wardwoven Chests appeared — requiring 10 and 4 stacks respectively. Skipping minor Vault chests was viable: any Legendary and Unique drops from bypassed chests were routed directly to the stash. Groups that split up to run minor Vaults simultaneously moved through the layout fastest.

Echo of Malphas Boss Fight

The boss arena was lined with Conduits that activated hazards throughout the fight, steadily draining Warding stacks. Allowing more than 2 Conduits to stay active simultaneously created a trap density that was extremely difficult to survive. The most reliable approach was to assign one player to Conduit duty while the rest focused damage on Malphas, returning to the boss between each Conduit interaction.

Unique Tuning Stones

Echo of Malphas had a 0.5% chance per kill to drop Evernight or Genesis — the two Unique Tuning Stones exclusive to this encounter. Each of the two post-boss Wardwoven Chests provided a separate 3% chance. Opening both required 14 total Warding stacks saved from the run.

The strongest Seneschal companion combination for the encounter was Flash of Adrenaline paired with Tactical Support, Duration Support, and Genesis, which together maintained a near-permanent 50% damage multiplier.

Frequently Asked Questions

How did players gain entry to the Vault of the Loom?

Entry required 7 Igneous Cores and 250 Shattered Stones, then traveling to the Gatehall in Kehjistan to reach the entrance portal.

Where did Igneous Cores drop in Season 3?

Igneous Cores came from Heralds of Malphas — enemies summoned at Braziers in the Arcane Tremors area.

Where did Shattered Stones drop?

Shattered Stones dropped from Construct-family enemies and from content inside Vaults and Arcane Tremors.

What happened if players ran out of Zoltun's Warding stacks?

With no stacks remaining, traps dealt full damage. Running out before or during the Echo of Malphas fight made hazard management significantly harder.

What were the drop rates for Evernight and Genesis?

Echo of Malphas had a 0.5% drop chance per kill. Each of the two post-boss Wardwoven Chests had an independent 3% chance; opening both required 14 Warding stacks.

What is the strongest Seneschal setup for this encounter?

Flash of Adrenaline combined with Tactical Support, Duration Support, and Genesis maintained a sustained 50% damage multiplier through the fight.