Astral Reflection

Mona

★★★★★HydroCatalyst
Constellation
Astrolabos
Region
Mondstadt
Birthday
August 31
Released in version
1.0
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Profile

A mysterious young astrologer who proclaims herself to be "Astrologist Mona Megistus," and who possesses abilities to match the title. Erudite, but prideful.

Damage limit:Miron MinMax · 4,213,000One hit with a team under the creator's rules; solo 655,000. As of 4/16/2025; video from 4/21/2023. For reference only; does not affect the rating.

Stats at level

Lv. 90
Base HP
10,409
Base ATK
287
Base DEF
653
Energy Recharge
32.0%

Build patch 7.1, updated 9/24/2026

Support

Weapons

  1. 1Thrilling Tales of Dragon Slayers ★★★
  2. 2Favonius Codex ★★★★
  3. 3Prototype Amber ★★★★
  4. 4Wine and Song ★★★★
  5. 5The Widsith ★★★★

Artifacts

  1. 1Noblesse Oblige4-piece
  2. 2Tenacity of the Millelith4-piece
  3. 3Emblem of Severed Fate + Scholar2 + 2
  4. 4Emblem of Severed Fate4-piece
  5. 5Scholar4-piece
SandsEnergy Recharge / ATK%
GobletHydro DMG Bonus / ATK%
CircletCRIT Rate
SubstatsEnergy Recharge > CRIT Rate > ATK%

A short build based on community data: role — support, options go from best to fallback. A detailed guide hasn't been written yet.

You can also check

Guides by other authors on other sites — in-depth breakdowns written by players.

Sources: genshin.gg. Texts are our own summary. Found a mistake in this build? · Improve this guide

Teams

Also appears in other teams

Wanderer

Recommended in: Imaginarium Theater

Freeze (Ganyu)

Recommended in: Aloy, Jean

Quickbloom

Recommended in: Cyno

Freeze (Ganyu)

Recommended in: Layla

Freeze (Kamisato Ayaka)

Recommended in: Layla

Freeze (Lohen)

Recommended in: Lohen

Is it worth pulling team damage gain, gcsim simulation

How much the whole team's damage grows compared to C0 with Favonius Codex (R5). Gains are cumulative: C2 includes C1.

  1. C1+0% (+0% vs previous)safe to skip
  2. C2+0.1% (+0.1% vs previous)safe to skip
  3. C3+1.8% (+1.7% vs previous)safe to skip
  4. C4+4.6% (+2.8% vs previous)safe to skip
  5. C5+5.2% (+0.6% vs previous)safe to skip
  6. C6+5.2% (+0% vs previous)safe to skip
How we calculated

The team comes from the open gcsim simulation database — the one closest to the teams in this guide. Only this character was changed: constellation and weapon. Teammates, artifact sets and rotation stay as in the original simulation; the whole team's substats are optimized to KQM standards separately for each weapon. C0 with Favonius Codex: 35,972 damage per second.

The gain depends on the team and investment: treat it as a guideline, not an exact number for your account. Original simulation · gcsim 4eda9fc, 2026-10-17

Talents

Normal Attack

Ripple of Fate

Normal Attack Performs up to 4 water splash attacks that deal Hydro DMG. Charged Attack Consumes a certain amount of Stamina to deal AoE Hydro DMG after a short casting time. Plunging Attack Gathering the might of Hydro, Mona plunges towards the ground from mid-air, damaging all opponents in her path. Deals AoE Hydro DMG upon impact with the ground.

Scaling
1-Hit DMG67.7%
2-Hit DMG64.8%
3-Hit DMG80.6%
4-Hit DMG101.1%
Charged Attack DMG269%
Charged Attack Stamina Cost50.0
Plunge DMG112.3%
Low/High Plunge DMG225%/281%
Elemental Skill

Mirror Reflection of Doom

Creates an illusory Phantom of Fate from coalesced waterspouts. Phantom Has the following special properties: ·Continuously taunts nearby opponents, attracting their fire. ·Continuously deals Hydro DMG to nearby opponents. ·When its duration expires, the Phantom explodes, dealing AoE Hydro DMG. Hold Utilizes water currents to move backwards swiftly before conjuring a Phantom. Only one Phantom created by Mirror Reflection of Doom can exist at any time.

Scaling
DoT57.6%
Explosion DMG239%
CD12.0s
Elemental Burst

Stellaris Phantasm

Mona summons the sparkling waves and creates a reflection of the starry sky, applying the Illusory Bubble status to opponents in a large AoE. Illusory Bubble Traps opponents inside a pocket of destiny and also makes them Wet. Renders weaker opponents immobile. When an opponent affected by Illusory Bubble sustains DMG, it has the following effects: ·Applies an Omen to the opponent, which gives a DMG Bonus, also increasing the DMG of the attack that causes it. ·Removes the Illusory Bubble, dealing Hydro DMG in the process. Omen During its duration, increases DMG taken by opponents.

Scaling
Illusory Bubble Duration8.0s
Illusory Bubble Explosion DMG796%
DMG Bonus60%
Omen Duration5.0s
CD15.0s
Energy Cost60

Passive talents

"Come 'n' Get Me, Hag!"

After she has used Illusory Torrent for 2s, if there are any opponents nearby, Mona will automatically create a Phantom. A Phantom created in this manner lasts for 2s, and its explosion DMG is equal to 50% of Mirror Reflection of Doom.

Waterborne Destiny

Increases Mona's Hydro DMG Bonus by a degree equivalent to 20% of her Energy Recharge rate.

Principium of Astrology

When Mona crafts Weapon Ascension Materials, she has a 25% chance to refund a portion of the crafting materials used.

Constellations

C1

Prophecy of Submersion

When any of your own party members hits an opponent affected by an Omen, the effects of Hydro-related Elemental Reactions are enhanced for 8s: · Electro-Charged DMG increases by 15%, Lunar-Charged DMG increases by 15%, Vaporize DMG increases by 15%, Hydro Swirl DMG increases by 15%, Lunar-Crystallize DMG increases by 15%. · Frozen duration is extended by 15%.

C2

Lunar Chain

When a Normal Attack hits, there is a 20% chance that it will be automatically followed by a Charged Attack. This effect can only occur once every 5s.

C3

Restless Revolution

Increases the Level of Stellaris Phantasm by 3. Maximum upgrade level is 15.

C4

Prophecy of Oblivion

When any party member attacks an opponent affected by an Omen, their CRIT Rate is increased by 15%.

C5

Mockery of Fortuna

Increases the Level of Mirror Reflection of Doom by 3. Maximum upgrade level is 15.

C6

Rhetorics of Calamitas

Upon entering Illusory Torrent, Mona gains a 60% increase to the DMG of her next Charged Attack per second of movement. A maximum DMG Bonus of 180% can be achieved in this manner. The effect lasts for no more than 8s.

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