How To Get The Last Voidstone In PoE: Complete Endgame Guide & Boss Strategies

Securing your fourth and final Voidstone in Path of Exile requires defeating either The Maven or Uber Elder to finish your Atlas of Worlds progression and convert all map drops to Tier 16. Obtaining this final upgrade demands collecting specific boss access fragments, optimizing single-target damage output past five million DPS, and executing precise phase-transition mechanics. This guide provides the tactical workflows, gear benchmarks, and execution steps necessary to claim your final socketable Voidstone.

Prerequisites and Gear Thresholds for Final Voidstone Bosses

Completing your Atlas socket layout requires defeating four major cosmic entities. While the Eater of Worlds and The Searing Exarch are typically cleared during initial Atlas completion via quest invitations, the final two Voidstones—the Decayed Voidstone from The Maven and the Ceremonial Voidstone from Uber Elder—present severe DPS and defensive checks.

Essential Gear & Defensive Benchmarks

• Effective Single-Target DPS: Minimum 3,000,000 sustained DPS (5,000,000+ recommended to skip phase overlap mechanics).
• Elemental & Chaos Defenses: 75% Resistance cap across all elements, positive Chaos Resistance (minimum 20%+), and either 100% Spell Suppression or maximum Block Chance.
• Effective Hit Pool (EHP): Minimum 4,500 Effective Life/Energy Shield combined with continuous recovery (Life Gain on Hit, high Life Regeneration, or Instant Leech).
• Mobility Setup: Frostblink, Flame Dash, or Shield Charge linked with Faster Attacks to dodge instant arena-wide wipe mechanics.

Mandatory Access Fragments & Economy Budget

• The Maven Access: 1x Maven's Writ (assembled from 10x Crescent Splinters collected by completing Maven-witnessed map boss encounters and Maven Invitations).
• Uber Elder Access: 1x Fragment of Knowledge, 1x Fragment of Shape (dropped by The Shaper), 1x Fragment of Terror, and 1x Fragment of Emptiness (dropped by The Elder in the Shaper's Realm).
• Currency Reserves: 2 to 4 Divine Orbs allocated for fragment purchases or hiring a trusted boss carry service if running a dedicated mapping or clearing build.
• Estimated Execution Duration: 10 to 15 minutes per attempt, including fragment loading, phase cutscenes, and arena clearance.

Step-by-Step Strategy to Defeat the Maven and Uber Elder

Step 1: Identify Your Missing Voidstone Socket

Open your Atlas screen (Hotkey: G) and inspect the bottom Voidstone socket bar. Identify which of the four Voidstones is missing to target the exact encounter required:

1. Omnipresent Voidstone: Awarded by defeating Quest/Standard Eater of Worlds.
2. Grasping Voidstone: Awarded by defeating Quest/Standard The Searing Exarch.
3. Decayed Voidstone: Awarded by defeating The Maven in The Maven's Crucible.
4. Ceremonial Voidstone: Awarded by defeating Uber Elder at The Voidlund.

If you have already collected three Voidstones, your remaining objective will be either The Maven or Uber Elder.

Step 2: Acquire Access Fragments and Prepare the Map Device

Avoid launching these encounters without full preparation, as losing all six map portals consumes your entry materials permanently.

1. For The Maven: Purchase a completed Maven's Writ from the trade site or assemble 10 Crescent Splinters by running Maven Witnessed Bosses and opening 10-boss Maven Invitations. Place the Maven's Writ into your personal Map Device and activate it.
2. For Uber Elder: Collect the four distinct Uber Elder fragments (Knowledge, Shape, Terror, Emptiness). Place all four fragments into the Map Device in their correct visual orientation to open portals to The Voidlund.

Warning: Do not apply Atlas Passive Tree Keystone modifiers like Wandering Path or destructive Maven modifiers if you are using specialized boss keystone passives that raise area level or grant bosses extra modifiers, as these apply directly to boss domain instances.

Step 3: Execute The Maven Encounter (Decayed Voidstone Workflow)

The Maven fight is divided into four distinct player phases separated by central brain (Nucleus of the Maven) intermission phases.

1. Phase 1 (Basic Attacks): Dodge her "Cascade of Pain" ice projectiles by running laterally. When she shouts "Stand Still!", step sideways immediately to avoid her multi-beam laser array.
2. Intermission (Nucleus of the Maven): Focus target damage on the central brain while dodging spawning add packs. Avoid standing in the rotating laser beam that disables life and energy shield recovery.
3. Ground Hazard Management: When marked by a expanding purple orb, movement-skill to the absolute outer perimeter of the arena before it detonates. This leaves the degen puddle at the edges, keeping the center clear.
4. The Memory Game: When the floor illuminates, watch the sequence of three to six floor segments flashing light blue. Step onto those exact segments in the exact sequence shown. Failing this sequence results in an instant 100% penetration wipe attack. Use a movement skill to reposition instantly if you step on an incorrect tile.

Pro-Tip: If you fail to memorize the Memory Game pattern, log out instantly to your character selection screen before the sequence detonates. You will consume one portal, but return safely to your hideout without dying, allowing you to re-enter during the boss's invulnerability frames.

Step 4: Execute the Uber Elder Encounter (Ceremonial Voidstone Workflow)

The Uber Elder fight forces you to manage both The Shaper and The Elder simultaneously in a cramped arena space.

1. Priority Positioning: Keep both bosses visible on your screen at all times. Circle the perimeter constantly to prevent getting off-screened by The Shaper's beam or ball lightning arrays.
2. Managing The Shaper: Watch for The Shaper's wind-up animation for his Yellow Beam. Dash behind him immediately. When he teleports for a Slam, step away from the golden ripple circle on the floor.
3. Managing The Elder: Focus damage on whichever boss is currently vulnerable (indicated by missing grey invulnerability shields). When The Elder casts his expanding gray ring explosion, run directly into the center inner circle of the ring to stay safe.
4. Add and Degen Control: Kill Madness Propagator squid monsters immediately when they spawn along the outer rim. Left unchecked, they deposit permanent grey cold degen ground across the arena floor.

Step 5: Socket Your Voidstone and Re-tier Your Atlas

Upon landing the killing blow on your target boss, the Voidstone drops directly onto the floor as a glowing quest item alongside high-tier base items.

1. Pick up the dropped Voidstone from the arena floor.
2. If your inventory is full or you disconnect before picking it up, return to your Hideout; the Voidstone can be retrieved directly from Zana/Kirac via the "Pick Up Voidstone" dialogue option.
3. Open your Atlas interface (G) and left-click the Voidstone to drag and socket it into any empty bottom slot.

Socketing your fourth Voidstone instantly upgrades all map tiers on your Atlas to Tier 16, grants a total 100% chance for dropped maps to drop one tier higher, and opens access to Tier 17 maps.

Voidstone Boss Metrics, Fragment Requirements, and Stat Thresholds

The following matrix outlines the operational specifications, fragments, and mechanical requirements for each of the four Voidstone encounters in Path of Exile.

Endgame Boss Failures and Field Adjustments

Scenario 1: Failing the Maven Memory Game Repeatedly

• Root Cause: Inability to track spatial movement patterns due to high visual clutter from build skills or low movement speed preventing timely tile-stepping.
• Actionable Fix: Slot in a Purity of Elements aura to become immune to freeze/chill slow effects during the phase. Drop your graphical settings to disable bloom, or use a portal instantly when the memory game starts to grant 10 seconds of Grace Period invincibility, allowing the Memory Game pattern to clear while you remain immune.

Scenario 2: Arena Floor Covered in Permanent Degen Puddles

• Root Cause: Detonating Maven debuff orbs or allowing Uber Elder Madness Propagators to cast in the center arena zone instead of outer borders.
• Actionable Fix: In Maven, stop DPSing when marked with spatial orbs and prioritize running to the 12, 3, 6, or 9 o'clock extreme edges of the ring. In Uber Elder, swap one support gem for an automated minion or totem setup to clear squids instantly upon spawn.

Scenario 3: Running Out of Portals Due to Insufficient Single-Target DPS

• Root Cause: Build focuses exclusively on clear-speed (AOE) without switching to bossing gem swaps, allowing phase timers to stall and hazard stacks to accumulate.
• Actionable Fix: Swap out mapping support gems for single-target equivalents before opening the map portal (e.g., swap Greater Multiple Projectiles for Slower Projectiles, or Chain for Hypothermia/Concentrated Effect). Flasks should be swapped from On-Kill setups to Gain Charges when Hit or Bossing Flasks.

Scenario 4: Defeated Boss But No Voidstone Dropped

• Root Cause: You were dead in the arena while a party member or carry finished the fight, or you are running a secondary character that has already collected that specific Voidstone.
• Actionable Fix: Ensure you stay inside the boss arena (even while dead on the floor) until the boss death animation completes. Do not click "Resurrect to Town" until the boss drops items. If you left early, speak to Kirac in your Hideout and click "Check for missing Voidstones."

Frequently Asked Questions

Can I buy a carry to get my last Voidstone in Path of Exile?

Yes. You can hire a boss killer via community trade channels or external forums. You must provide the fragments (or pay an entry fee), enter the portal once opened, and stay near the entrance. Ensure you remain inside the arena (even if dead on the floor) when the boss dies so the Voidstone quest state flags as complete for your account.

Which Voidstone is usually the hardest to get?

The Decayed Voidstone (The Maven) is generally considered the hardest due to strict mechanical checks like the Memory Game and anti-recovery beams, which cannot be easily bypassed by purely defensive builds.

What happens if I use all six portals without beating the boss?

If all six portals are used, the instance closes, and the access items (Maven's Writ or Uber Elder fragments) are lost. You must acquire a new set of entry fragments to open a new instance and attempt the fight again.

Do Voidstones apply account-wide or per character in a league?

Voidstones apply account-wide within the specific league challenge environment (Softcore, Hardcore, or Solo Self-Found). Once unlocked on your main character, all secondary characters created in that same league instantly benefit from the socketed Voidstone map upgrades.

How do four socketed Voidstones affect map drops?

Socketing all four Voidstones upgrades all baseline maps on your Atlas to Tier 16. Additionally, each socketed Voidstone grants a 25% chance for maps that drop in your zones to drop one tier higher, providing a 100% chance (guaranteed +1 tier upgrade) when all four are socketed.

Master the Path of Exile Endgame Architecture

Optimizing your Atlas with all four Voidstones is the fundamental foundation for high-tier currency strategies and endgame mapping efficiency. Perfect your bossing mechanics, refine your single-target DPS setups, and secure your complete Tier 16 Atlas layout today.