Genshin Impact Wiki
Genshin Impact Wiki

Astrologist Mona Megistus[1][2][Note 1] is a playable Hydro character in Genshin Impact.

An astrologist of knowledgeable skill and high pride, Mona has settled in Mondstadt to avoid suffering the ire of her master after unwittingly reading the latter's diary.

Gameplay Info

Ascensions and Stats

Toggle Ascension Materials

ATK[✦ 1]
Special Stat[✦ 2]
(Energy Recharge)
Ascension Cost (0 → 1)
Mora 20,000
Varunada Lazurite Sliver 1
Philanemo Mushroom 3
Whopperflower Nectar 3
Ascension Cost (1 → 2)
Mora 40,000
Cleansing Heart 2
Varunada Lazurite Fragment 3
Philanemo Mushroom 10
Whopperflower Nectar 15
Ascension Cost (2 → 3)
Mora 60,000
Cleansing Heart 4
Varunada Lazurite Fragment 6
Philanemo Mushroom 20
Shimmering Nectar 12
Ascension Cost (3 → 4)
Mora 80,000
Cleansing Heart 8
Varunada Lazurite Chunk 3
Philanemo Mushroom 30
Shimmering Nectar 18
Ascension Cost (4 → 5)
Mora 100,000
Cleansing Heart 12
Varunada Lazurite Chunk 6
Philanemo Mushroom 45
Energy Nectar 12
Ascension Cost (5 → 6)
Mora 120,000
Cleansing Heart 20
Varunada Lazurite Gemstone 6
Philanemo Mushroom 60
Energy Nectar 24
  1. Does not include weapon ATK value.
  2. Characters gain special stats starting with 2✦.
Total Cost (0✦ → 6✦)
Mora 420,000 Mora


Talent Ripple of FateRipple of FateNormal Attack
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.
Talent Mirror Reflection of DoomMirror Reflection of DoomElemental Skill
Creates an illusory Phantom of Fate from coalesced waterspouts.

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.

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.
Talent Stellaris PhantasmStellaris PhantasmElemental Burst
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.

During its duration, increases DMG taken by opponents.
Talent Illusory TorrentIllusory TorrentAlternate Sprint
Alternate Sprint
Mona cloaks herself within the water's flow, consuming stamina to move rapidly.

When under the effect of Illusory Torrent, Mona can move at high speed on water.
Applies the Wet status to nearby opponents when she reappears.
Talent "Come 'n' Get Me, Hag!""Come 'n' Get Me, Hag!"1st Ascension Passive
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.
Talent Waterborne DestinyWaterborne Destiny4th Ascension Passive
Increases Mona's Hydro DMG Bonus by a degree equivalent to 20% of her Energy Recharge rate.
Talent Principium of AstrologyPrincipium of AstrologyUtility Passive
When Mona crafts Weapon Ascension Materials, she has a 25% chance to refund a portion of the crafting materials used.

Talent Upgrade


Character Talent Materials
1 → 22✦
Mora 12,500 [12,500]
Whopperflower Nectar 6 [6]
Teachings of Resistance 3 [3]
2 → 33✦
Mora 17,500 [30,000]
Shimmering Nectar 3 [3]
Guide to Resistance 2 [2]
3 → 4
Mora 25,000 [55,000]
Shimmering Nectar 4 [7]
Guide to Resistance 4 [6]
4 → 54✦
Mora 30,000 [85,000]
Shimmering Nectar 6 [13]
Guide to Resistance 6 [12]
5 → 6
Mora 37,500 [122,500]
Shimmering Nectar 9 [22]
Guide to Resistance 9 [21]
6 → 75✦
Mora 120,000 [242,500]
Energy Nectar 4 [4]
Philosophies of Resistance 4 [4]
Ring of Boreas 1 [1]
7 → 8
Mora 260,000 [502,500]
Energy Nectar 6 [10]
Philosophies of Resistance 6 [10]
Ring of Boreas 1 [2]
8 → 96✦
Mora 450,000 [952,500]
Energy Nectar 9 [19]
Philosophies of Resistance 12 [22]
Ring of Boreas 2 [4]
9 → 10
Mora 700,000 [1,652,500]
Energy Nectar 12 [31]
Philosophies of Resistance 16 [38]
Ring of Boreas 2 [6]
Crown of Insight 1 [1]


Constellation Prophecy of SubmersionProphecy of Submersion1
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:
Constellation Lunar ChainLunar Chain2
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.
Constellation Restless RevolutionRestless Revolution3
Increases the Level of Stellaris Phantasm by 3.
Maximum upgrade level is 15.
Constellation Prophecy of OblivionProphecy of Oblivion4
When any party member attacks an opponent affected by an Omen, their CRIT Rate is increased by 15%.
Constellation Mockery of FortunaMockery of Fortuna5
Increases the Level of Mirror Reflection of Doom by 3.
Maximum upgrade level is 15.
Constellation Rhetorics of CalamitasRhetorics of Calamitas6
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.

Each Constellation activation requires one Mona's Stella Fortuna Mona's Stella Fortuna.


Character Event Wishes

Mona has not been promoted or featured with a drop-rate boost in any Event Wishes.

Chronicled Wishes

Mona has been included in 1 Chronicled Wish:

Wish Designated Item Duration Version
Ode to the Dawn Breeze 2024-03-13
Ode to the Dawn Breeze 2024-03-13
MonaHydro Mo­na Mo­na
March 13, 2024 – April 2, 2024 4.5


  1. 1.0 1.1 Mona's real name has been inconsistent in-game, being written as Astrologist Mona Megistus; Mona Megistus, the Astrologist; and Mona Megistus the Astrologist. Regardless, "Astrologist" is part of her name as demonstrated by the fact that the Chinese name includes 阿斯托洛吉斯 Āsītuōluòjísī, the phonetic transcription of "Astrologist" into Chinese instead of the translation 占星术士 Zhānxīng Shùshì, "astrologist."

Other Languages

LanguageOfficial Name

Change History

Version 2.7
  • Updates to character voice-overs:
    • Removed from all languages:
      • "Disengaging Wind Glider"

Version 2.6

Version 2.5

Version 2.0

Version 1.5

  • Updates to character voice-overs:
    • Updated audio for Japanese:
      • "About Jean"

Version 1.4

  • Updates to character voice-overs:
    • Updated audio for Japanese:
      • "About Jean"

Version 1.3

  • Updates to character voice-overs:
    • Updated audio for Chinese:
      • Majority of the Combat voice-overs
  • Mona's Talent Illusory Torrent was optimized so that she can use it more quickly when hit.

Version 1.2

  • December 28, 2020 — Mona's portrait used in official media was silently updated to feature more details.
  • A few lines of Mona's Character Story 4 were revised.
    • Old: "You say that your line has a unique pedigree — but you also say that your hag of a teacher is a stubborn dimwit. Which of your descriptions of your master is accurate?"
      New: "You speak of your illustrious lineage, yet you also refer to your master as a "hag" and a "stubborn dimwit." Which of these descriptions is accurate?"
    • Old: Albedo could not help but ask this question — and indeed, Mona found that she had never given this question much thought either.
      New: Albedo could not help but ask this question — and when he did, Mona promptly realized that she had never given it much thought herself.

Version 1.0

  • Mona was released.


  1. 1.0 1.1 Event Summertime Odyssey Quest: IV - Immernachtreich Apokalypse, Part 1: Immernachtreich Apokalypse
  2. 2.0 2.1 Event Windblume's Breath Quest, Windblume Festival: Part II, Part 2: A Riddle Amidst the Crowds
  3. 3.0 3.1 Twitter: EN & JP VA Announcement
  4. Weibo: 全新角色演示-「莫娜:命运与生活」
  5. Twitter: KR VA Announcement
  6. Community Document: Mona C1 Freeze