Extinguished Core is a Character, Trace, and Light Cone Ascension Material. See how to get it, the best place to farm, and how to use it in Honkai: Star Rail here!

Extinguished Core Locations and How to Get It

Best Place to Farm - Backwater Pass

The best place to farm for Extinguished Core is the Backwater Pass at Jarilo-VI. There are several Frostspawns and Flamespawns that roam this area and they drop the material!

Backwater Pass Treasure Chest Locations

Locations - Where to Get Extinguished Core

Enemies that Drop Extinguished Core

All Enemies
Mask of No Thought	Ice Out of Space	Blaze Out of Space
Windspawn	Thunderspawn	Frostspawn
Flamespawn

Challenge the Simulated Universe

You can also get Extinguished Core after defeating Elite enemies in the Simulated Universe.

Simulated Universe Guide

Dispatch Assignments

Extinguished Core can be obtained by dispatching characters on Assignments.

Recommended Assignments

Exchange Through the Synthesizer

Any 2★ Trace Material Character Ascension Material x2	→	Extinguished Core x1

How to Unlock the Omni-Synthesizer

Buy Using Undying Embers

Undying Embers x4	→	Extinguished Core x2

Purchase From the World Shop

Extinguished Core can be bought from World Shops by using the special currency of the area the shop is in.

All World Shop Locations

Obtain From Golden Calyxes

Extinguished Core can be farmed by clearing Xianzhou Luofu: Golden Calyxes..

Crimson and Golden Calyxes Guide

How to Use Extinguished Core

Use in the Lab Assistants In Position Event

Extinguished Core is one of the experimental materials needed to unlock a research topic to get rewards in the Lab Assistants In Position Event!

Lab Assistants in Position Event Guide

Character Ascension

Extinguished Core is used to ascend certain characters and level up their traces.

Characters that Use Extinguished Core
Argenti	Arlan	Bailu
Black Swan	Dan Heng	Herta
Himeko	Lynx	Pela
Xueyi

Light Cone Ascension

Extinguished Core is used to ascend certain Light Cones.

Light Cones that Use Extinguished Core
Eternal Calculus	Reforged Remembrance	An Instant Before A Gaze
Solitary Healing	Night on the Milky Way	Time Waits for No One
On the Fall of an Aeon	Cruising in the Stellar Sea	Texture of Memories
Post-Op Conversation	It’s Showtime	Before the Tutorial Mission Starts
Past and Future	Day One of My New Life	Landau's Choice
Woof! Walk Time!	The Seriousness of Breakfast	Warmth Shortens Cold Nights
Mediation	Amber	Data Bank
Fine Fruit	Shattered Home	Passkey
Pioneering

Synthesizer

You can use Extinguished Core in the Synthesizer to convert it into another Trace Material Character Ascension Material.

Extinguished Core Effects

Extinguished Core
Rarity	★★
Effect	The heart of a monster wandering the Fragmentum. Crude material used for enhancement

Honkai: Star Rail Related Guides

All Item Types

All Items List

All Upgrade Materials

Upgrade Materials
Tracks of Destiny	A Glass of the Besotted Era	Ancient Engine
Arrow of the Starchaser	Artifex's Gyreheart	Ascendant Debris
Auspice Sliver	Broken Teeth of Iron Wolf	Chordal Mirage
Conqueror's Will	Countertemporal Shot	Destroyer's Final Road
Divine Amber	Dream Flamer	Dream Fridge
Dream Making Engine	Endotherm Chitin	Enigmatic Ectostella
Exquisite Colored Draft	Flower of Eternity	Gelid Chitin
Golden Crown of the Past Shadow	Guardian's Lament	Heaven Incinerator
Heavenly Melody	Horn of Snow	Immortal Lumintwig
IPC Work Permit	Key of Wisdom	Lightning Crown of the Past Shadow
Lost Crystal	Lost Echo of the Shared Wish	Moon Rage Fang
Myriad Fruit	Nail of the Ape	Nail of the Beast Coffin
Netherworld Token	Obsidian of Obsession	Past Evils of the Borehole Planet Disaster
Raging Heart	Refined Aether	Regret of Infinite Ochema
Safeguard of Amber	Searing Steel Blade	Shape Shifter's Lightning Staff
Shards of Desires	Silvermane Medal	Squirming Core
Stellaris Symphony	Storm Eye	Suppressing Edict
Tears of Dreams	Traveler's Guide	Void Cast Iron
Worldbreaker Blade	Adventure Log	Ancestral Hymn
Ancient Spindle	Arrow of the Demon Slayer	Artifex's Cogwheel
Celestial Section	Condensed Aether	Crystal Meteorites
Destined Expiration	Dream Flow Valve	Dynamic Outlining
Fragments of Impression	Glimmering Core	Immortal Aeroblossom
Key of Knowledge	Lifeless Blade	Lost Gold Fragment
Lupitoxin Sawteeth	Nourishing Honey	Oath of Steel
Obsidian of Desolation	Silvermane Insignia	Sprout of Life
Starfire Essence	Usurper's Scheme	Alien Tree Seed
Ancient Part	Arrow of the Beast Hunter	Artifex's Module
Borisin Teeth	Dream Collection Component	Endurance of Bronze
Extinguished Core	Fiery Spirit	Firmament Note
Harmonic Tune	Immortal Scionette	Key of Inspiration
Lost Lightdust	Meteoric Bullet	Obsidian of Dread
Rough Sketch	Scattered Stardust	Seed of Abundance
Shattered Blade	Silvermane Badge	Sparse Aether
Tatters of Thought	Thief's Instinct	Travel Encounters