LOTM Guide
SYSTEMS FILE 04/Open Beta Edition

Lord of Mysteries Sealed Artifacts & Extraordinary Substances

How Sealed Artifacts work in Lord of Mysteries: three classes, drawback pairing, and the Extraordinary Substance embed loop — unverified figures marked 待核验.

System: Equipment · Sealed Artifacts·Covers: Classes · Drawbacks · Substances · Aggregation
Updated 2026-09-06

Verification rule

* = pending verification (待核验) — community-reported detail, cross-checked against CN guides on 2026-09-06, not yet confirmed in-game. No drop rate, cost, or reward quantity on this page is cited as an exact figure.

Applies to the CN Open Beta released on 2026-08-21. Mechanics can change between patches; anything marked * (待核验) is not yet confirmed against in-game data.

Sources: 2026-09-06 cross-checked against CN community guides: 游民星空《封印物详解》(2026-08-25, guide by Kumalc) and its syndicated companion《非凡物质详解》(17173 / 9game), 3DM手游 (TapTap guide by Kumalc, 2026-08-24), 雷电模拟器 (2026-07-11, 夜听雪). Several figures trace to a single author lineage and are marked 待核验.

What Sealed Artifacts are

Sealed Artifacts (封印物) are the game’s core combat-power system, unlocked at level 29*. They work like accessories: each artifact carries a strong passive or active effect, and the right artifact can define a build the way a potion sequence defines a pathway.

They inherit the novel’s central premise — relics too dangerous to use freely. Every effect comes bundled with a drawback, and a careless pairing can hurt you more than the enemy. That effect-versus-cost trade is the whole skill of this system.

The three classes: attack, defense, special

CN guides agree on a three-way split. Two classes open on day one; the third follows the story.

Attack artifacts

Offense-oriented passives and procs. Available from day one of the artifact system, alongside defense — most early setups pair one of each.

Defense artifacts

Mitigation, survival, and counter-effect passives. Also open from day one, and the half of the pair newcomers tend to underestimate.

Special artifacts

Not stat pieces — they unlock system functions as you progress. Guides cite the novel’s 2-049, the Antigonus Family Puppet, as an in-game example. Special artifacts unlock automatically at fixed story nodes.

Every effect has a price

Each artifact pairs its strong passive with a corresponding negative cost — the in-game echo of relics that carry their own will. Equip an artifact whose drawback collides with your role and the cost can bite harder than the benefit; CN guides warn that a bad pairing can backfire outright.

Read the cost line before you socket anything. The picks table below favors artifacts whose drawbacks each role can absorb, per community testing.

Extraordinary Substances: the embed layer

非凡物质 — Extraordinary Substances in community translation — are the enhancement components socketed into Sealed Artifacts, and the mid-game’s main power lever.

Two types, matched slots

Attack substances go into attack and special slots; defense substances go into defense and special slots.

Two quality tiers

Purple and gold. Gold pieces carry the affixes worth embedding; purple pieces exist mostly to be broken down into aggregation material.

Embedding unlocks at 42*

Guides put the embed function at level 42 — typically day two of play. Before that, artifacts run on their base effect alone.

Resonance*

Embedding multiple affixed substances grants extra attributes — the Extraordinary Resonance bonus — which scales with the Extraordinary Knowledge (非凡知识) stat.

Affixes and stars, decoded

The iconography looks arcane; the rules are simple once spelled out.

  1. 01

    Three affix grades

    凡 (common), 珍 (precious), 稀 (rare). An icon labeled 珍 carries only precious affixes; 稀 means at least one rare affix.

  2. 02

    Diamonds are stars

    The diamond marks at an item’s lower-right corner count its affixes: one diamond = one star, two = two, and so on.

  3. 03

    No duplicates

    A single substance never repeats an affix attribute across its slots.

  4. 04

    Gold to embed, purple to feed

    Purple substances cannot be aggregated. Turn on auto-decompose under Bag → Extraordinary Substances and they convert into the material aggregation consumes.

Aggregation: the reroll loop

From roughly day three, aggregation becomes the recurring ritual: feed material, raise stars, chase rare mutated affixes (异变词条).

  1. 01

    Raise stars

    Aggregating a substance can raise its star count, widening how many affixes it holds.

  2. 02

    Reroll the affixes

    Each aggregation rolls affixes anew; rare mutated affixes are the chase. Rolls are random — no published rates.*

  3. 03

    Quality change gated at 46*

    Upgrading an artifact consumes Historic Echoes (历史回响); raising its quality tier is gated at level 46, per community guides.

  4. 04

    Echoes are scarce

    Beyond buying with unbound Soli at the exchange, Historic Echo sources are limited and slow — concentrate them on your main artifact.

  5. 05

    Collection is the short game

    Guides report most players assemble the standard artifact lineup within the first week or two. The long game is substances, not collection.

Where substances come from

Two channels carry the loop; both scale with progression.

High-danger zone bosses

The main source of rare crystalline substances: unlock a high-danger area, then beat its guardian boss. These challenges run on refresh cycles or entry conditions — exact timers unverified.*

Story grants

Sequence-advancement quest chains and contracts with special NPCs — guides cite the gate-raven that speaks with the spirit world — yield auxiliary materials hard to obtain elsewhere.

Decomposition

Purple substances feed the aggregation material pool, which is an argument for keeping auto-decompose on from day one.

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Community picks by role and mode

From the most-shared CN pairing guide (Kumalc, via TapTap / 3DM). Community testing, not official tiering.* EN names are community translations — the global client is unreleased.

ScenarioAttack artifactsDefense artifacts
Tank · PVE幸运草 Clover* (short fights) · 公证书 (long fights)正义钱包 Justice’s Wallet · 绿华
DPS · PVE幸运草 · 公证书 · 蠕动的饥饿 Creeping Hunger (multi-target)荣耀之证 (dodge key hits, reflect scaling) · 月亮纸人 (safety)
DPS · PVP丧钟 Death Knell (all-round) · 飓风之斧 (Apprentice / Bard / Mystery Pryer) · 蠕动的饥饿荣耀之证 (all-round) · 安静发丝 (anti-melee) · 月亮纸人
Support · PVE幸运草 · 公证书荣耀之证 (absorb key hits) · 绿华 (healing support) · 月亮纸人
Support · PVP幸运草 · 公证书荣耀之证 · 月亮纸人

Common mistakes

Five ways this system punishes hurry, all reported by CN guides.

  1. 01

    Reading effects, skipping costs

    The drawback line is part of the artifact. Pair against your role’s weaknesses, not just its strengths, or the cost compounds.

  2. 02

    Hoarding purple substances

    Purple cannot aggregate. With auto-decompose off, your material pool starves while your bag fills.

  3. 03

    Embedding purple “bargains”

    Only gold pieces with affixes you actually need are worth sockets. A purple embed you replace tomorrow is a wasted slot.

  4. 04

    Ignoring Resonance and Knowledge

    Multi-affix embeds only pay off if Extraordinary Knowledge keeps pace — Resonance scales with it. Neglect the stat and your best affixes strand.

  5. 05

    Spreading Historic Echoes thin

    Echoes are the slowest resource in the system. Concentrate them on your main artifact instead of touching every piece.

Frequently asked questions

Q1.How do I unlock Sealed Artifacts in Lord of Mysteries?
The artifact system opens at level 29 (community guides — pending in-game verification). Attack and defense artifacts are available immediately; special artifacts unlock automatically at fixed story nodes.
Q2.What level does Extraordinary Substance embedding unlock?
Level 42, typically the second day of play; aggregation opens around day three. Both figures come from community guides and are marked 待核验 until confirmed in-game.
Q3.What do I do with purple Extraordinary Substances?
They cannot be aggregated. Enable auto-decompose under Bag → Extraordinary Substances so they convert into the material aggregation consumes.
Q4.Can you avoid a Sealed Artifact’s drawback?
No — the cost is intrinsic, the in-game echo of artifacts that carry their own will. The counterplay is pairing: pick artifacts whose drawbacks your role and mode can absorb.
Q5.How do special artifacts like 2-049 unlock?
Special artifacts open system functions and unlock automatically at fixed story progress points — no manual activation. Guides cite 2-049, the Antigonus Family Puppet from the novel, as an example.
Q6.What are Sealed Artifacts called in English?
The global client is unreleased, so English names are community translations: Sealed Artifacts (封印物) and Extraordinary Substances (非凡物质). Individual names such as Creeping Hunger and Death Knell follow the novel’s official translation; the rest are provisional.

Other files

Sealed Artifacts are the fourth file in the systems archive. The marionette, Fate Council, SAN, Connections and gear files complete the launch-system set.

Guides hub