Morimens Realm Mastery is a team attribute that powers your realm's built-in mechanics. Awakeners, Wheels of Destiny, Covenants and some Posses add points to a team total, and each realm turns every point into a small bonus, such as extra Posse Potency in Primordia: Chaos. In most realms, a team made entirely of one realm gets a doubled Realm Mastery effect. An extra +250 Realm Mastery for pure teams was announced on October 17, 2026, but it is a plan, not part of V2.6.2.
This page is based on official Morimens patch notes and developer posts on Steam up to the V2.6.2.0 update (October 19, 2026), checked on October 20, 2026. Some realm numbers come from older versions, and several current per-point values only appear in-game, so we flag what we could not confirm.
01
What Realm Mastery does
Each realm has built-in rules that official notes call its Realm Legacy, shown in Lineup. Realm Mastery is the attribute that scales part of those rules. The V2.0.0.0 notes (January 2025) phrase every realm bonus as "for each point of realm mastery in the team", so it is one team total, not a per-Awakener stat. The in-game Realm Mastery description, made fully scrollable by patches in September and November 2025 (including in Exploration), shows the exact current numbers.
Do not confuse the stat with the Handbook task series "Realm Mastery IX" and "Realm Mastery X" (V2.3.0.0, July 2025) or the "Realm Mastery" missions under Records.
02
Where Realm Mastery comes from
| Source | Official example | Notes date |
|---|---|---|
| Awakener attributes | Saya has 12 Realm Mastery without Psyche Surge and 36 at Psyche Surge 12 | V2.5.1 Saya introduction, May 2026 |
| Enlighten effects | Miryam's Enlighten 2 "Final Arrival": Realm Mastery gained raised from 15 to 20 | V1.6.5.0, November 2024 |
| Wheels of Destiny and Covenants | Celeste's talent "Voyage Horn" counts the Realm Mastery that Celeste, her Wheel of Destiny and her Covenant have, adding 0.5% Tentacle DMG per point | V2.4.0.0, November 2025 |
| Posses | "That Which is No Lie": gain 80 Shield, gain 20 Realm Mastery; unlocked by clearing Investigation Part 2, Chapter 6 "When the Mountain Feasts" | V2.6.0.0, August 2026 |
| Posse Potency | In Primordia: Chaos, each point of Posse Potency raises a list of values by 1%, and Realm Mastery is on that list | Lotan: Cetarchon post, July 2026 |
We did not find an official list of which Wheels of Destiny or Covenants carry Realm Mastery, or how much each one gives. Check the attribute line on each item in-game, and see our Wheels of Destiny and Covenants pages for the items themselves.
03
Pure teams and the doubled effect
Before version 2.0, Aequor, Caro and Ultra Awakeners could only team up with their own realm or with Chaos, according to the developers' October 2026 log. The V2.0.0.0 update (January 13, 2025) allowed any two different realms in one lineup, with each realm's talent active as long as one of its Awakeners is in the team.
The same notes added the pure-team rule: a team made only of Deep Sea (now Aequor), Caro or Ultra Awakeners had its Mastery effect doubled, while Chaos Mastery was switched off whenever Chaos was mixed. The October 17, 2026 log says classic Pure Ultra's doubled Realm Mastery effect "remains unchanged" and refers to an existing doubled effect for pure second-generation teams. For team ideas, see our realms guide and team page.
Editorial judgement, as of V2.6.2 (October 2026): a mixed team gains a second realm's mechanics but gives up the doubling, which is a main reason pure teams stay viable. The developers say pure-team players felt mixing had become close to mandatory, and give that as the reason for the +250 plan below.
04
Realm Mastery bonus by realm
Classic realms (V2.0.0.0 wording, January 2025)
| Realm | Per point of team Realm Mastery | Pure team |
|---|---|---|
| Chaos | Extra Aliemus all Awakeners gain after using a Posse rises by 0.05 | Mastery off when mixed with another realm |
| Deep Sea (now Aequor) | 0.25% chance of an extra Tentacle Assembly stack after an Awakener's Exalt; Calm Sea Shield +0.01% of Max HP; Raging Waves triggered tentacle damage +0.02% | Effect doubled; starting tentacles doubled |
| Caro | First Devour each turn gives extra Shield of 0.01% of Max HP and temporary power of 0.005% of Max HP, rising at lower HP | Effect doubled; base Crimson Furnace gain doubled |
| Ultra | 0.125% chance to gain 1 Inspiration at the start of each turn | Effect doubled; Ultra Turn effects no longer halved |
Treat these as historical. Later patches changed these realms: V2.3.0.0 (July 2025), for example, added a start-of-turn Crimson Furnace gain that Pure Caro doubles, and by October 2026 the mixed-team Ultra Turn penalty was a 25% reduction, not a halving.
Second-generation realms
The only per-point value we found in text form is for Primordia: Chaos. A July 24, 2026 post states that each point of Primordia: Chaos Mastery increases Posse Potency by 0.05%. Each point of Posse Potency, in turn, raises fixed Poison, Counter, STR and Ancient Embers by 2%, and a longer list that includes fixed Shield, Crit. Rate and Realm Mastery by 1%.
Per-point values for Benthos: Aequor, Propagation: Caro and Singularity: Ultra were not stated in the official text notes we reviewed, so they are not confirmed here as of V2.6.2. Read them from the in-game description.
05
Planned: +250 Realm Mastery for pure teams
The official Steam post "Light's 30-Day Challenge Log: Days 1–8" (October 17, 2026) summarizes daily devlogs from the official Discord. Day 8, "Pure Realm II", plans that for Primordia: Chaos, Benthos: Aequor, Propagation: Caro and Singularity: Ultra, a team made up entirely of Awakeners from that realm color gains an extra 250 Realm Mastery. The post adds that this bonus also benefits from the existing doubled effect for pure teams, and warns that everything in it may still change after testing.
| Realm | Previewed bonus from the extra Realm Mastery |
|---|---|
| Primordia: Chaos | +25% Posse Strength |
| Benthos: Aequor | Tranquil Sea stance gives extra Shield equal to 12.5% of Max HP; Raging Waves stance gives an extra +12.5% Tentacle DMG bonus |
| Propagation: Caro | All Awakeners gain 5 extra Crimson Frenzy stacks at the start of each turn, plus 10 extra stacks the first time each one consumes a Propagule Embryo per turn |
| Singularity: Ultra | Adds 3.75 stacks to the Singularity Prism at stage start and 6.25 stacks to the Singularity Beacon on cards entering Ultra Space, before rounding up |
Our arithmetic, not an official statement: for Chaos, 250 points doubled to 500, at 0.05% Posse Potency each, equals 25%. That suggests the preview figures already include the doubling, but the post does not say so directly. The post names only the four second-generation realms. Crimson Frenzy is the planned new name for Propagation Fiesta; each stack boosts the Awakener's next Exalt this turn by 1%, which our Exalt and Over Exalt guide covers.
06
Live or planned as of V2.6.2
| Item | Status | Source |
|---|---|---|
| Realm Mastery as a team total that scales realm mechanics | Live | V2.0.0.0, January 2025 |
| Doubled effect for pure teams | Live | V2.0.0.0; restated October 17, 2026 |
| Posse "That Which is No Lie" (+20 Realm Mastery) | Live | V2.6.0.0, August 24, 2026 |
| +250 Realm Mastery for pure second-generation teams | Planned | October 17, 2026 log |
| New Pure Ultra effect, with doubled Realm Mastery kept | Planned | October 17, 2026 log |
The V2.6.2.0 maintenance notes (October 19, 2026) do not mention the +250 bonus, so it was not live at the time of writing.
07
FAQ
What is Realm Mastery in Morimens?
A team attribute. Your team's total scales your realm's built-in mechanics, and each realm converts points into a different bonus.
How do I get more Realm Mastery in Morimens?
From Awakener attributes, some Enlighten effects, Wheels of Destiny, Covenants and Posses like "That Which is No Lie". Psyche Surge raises it too: Saya's introduction lists 12 at base and 36 at Psyche Surge 12. A pure team doubles the effect.
Does Realm Mastery work in mixed teams?
Yes, but without the pure-team doubling. Under the V2.0.0.0 rules, classic Chaos Mastery was disabled when Chaos was mixed.
Is the +250 Realm Mastery bonus live?
No. As of V2.6.2 (October 2026) it is a planned change from the October 17, 2026 developer log and may still change.