Sandrone
"Mirrored Analysis"
Cryo
Claymore
Snezhnaya
BIRTHDAY_LABEL•January 13
RELEASED_LABEL•June 29, 2026

The Seventh of the Fatui Harbingers, "Marionette." Interprets all phenomena through the prism of mathematics, and is an elegant lady who is never absent from a tea party.

CONSTELLATION_META_LABEL Narcissorolegium  •  AFFILIATION_LABEL Fatui
VOICE_ACTORS_LABEL EN: Deneen Melody · CN: 洪海天 · JP: 本多真梨子 · KR: Kang Eun-ae
GUIDES_LABEL
Genshin Builds Prydwen
Icy Veins
NAVIGATION_LABEL
TALENTS_LABEL CONSTELLATIONS_LABEL PASSIVES_LABEL
BASE_STATS_LABEL
HP1,030 → 8,998
ATK27 → 233
DEF59 → 512
ASCENSION_STAT_LABELCRIT Rate +19.2%
ASCENSION_MATERIALS_LABEL
Subdetection Unit
Plume of the Fallen Watcher
Shivada Jade Gemstone
Crown of Insight
Precision Drive Shaft

TALENTS_LABEL

Normal Attack Generates threads that control her weapon using formulae, performing up to 3 consecutive strikes. Charged Attack Summons the Facilitatrice Automatisee Generaliste Interactive et Omnitache, or "Fagio," and switches it to Decoding mode: Unleashes a sweeping fire attack on enemies in front, as well as periodically fires condensed beams, dealing AoE Cryo DMG. Radiance: Stellar Glimmer: The condensed beams will instead deal AoE Cryo DMG that is considered the corresponding Stellar Glimmer reaction DMG. While in Decoding mode, Fagio's Decoding Power will continuously increase. Firing condensed beams will also further increase its Decoding Power. When Fagio's Decoding Power reaches the maximum of 100 points, it switches to Power Overdrive mode, in which it fires at opponents with longer intervals, dealing Cryo DMG. It will be unable to switch to Decoding mode at this time. When not in Decoding mode, Fagio's Decoding Power gradually decreases. When Sandrone is off-field, she will focus on maintaining Fagio, causing its Decoding Power to decrease at 300% the original rate. Fagio exits Power Overdrive mode when its Decoding Power has decreased to under 50. Plunging Attack Plunges from midair to strike the ground below, dealing DMG to opponents along their path and causing AoE DMG on landing.
LEVEL_LABEL 1 1 15
LEVEL_N_TITLE
1-Hit DMG76.3%
2-Hit DMG67.2%
3-Hit DMG102.8%
Charged Attack Sweeping Fire DMG43.0%
Charged Attack Condensed Beam DMG122.5%
Charged Attack Condensed Beam Stellar-Conduct DMG81.7%
Charged Attack Condensed Beam Stellar Swirl DMG122.5%
DMG When in Power Overdrive43.0%
Plunge DMG74.6%
Low/High Plunge DMG149.1%/186.3%

CONSTELLATIONS_LABEL

C1Morrow After the Golden Dusk
When in Decoding mode, Fagio's Decoding Power increases at a 50% lower rate, and all party members deal 30% increased Stellar Glimmer reaction DMG.
C2An Heiress Gazed Into the Looking-Glass
Radiance: Stellar Glimmer: Increases CRIT DMG from Charged Attack condensed beams by 40%. Also, each time a beam is fired, CRIT DMG dealt by all condensed beams fired during this Decoding mode period will be further increased by 20%. Max 3 stacks.
C3Refuse the Wake of Dusk, the Moonlit Yoke
Increases the Level of Formule Phenomenale: Self-Evident Proposition by 3. Maximum upgrade level is 15.
C4In Knowledge Lies the World's True Ground
When Sandrone deals Stellar-Conduct or Stellar Swirl DMG to an opponent, she will also summon an extra Prismatic Resonance Cannon to fire off a coordinated attack which deals Cryo DMG at 125% or 187.5% of her ATK, respectively. This DMG is considered the corresponding Stellar Glimmer reaction DMG, and the effect can occur once every 4s.
C5Of All Beside, She Takes No Part
Increases the Level of Formule Phenomenale: Q.E.D. by 3. Maximum upgrade level is 15.
C6Narcissus Wakes, Her Eyes Upon the Dawn
When Fagio fires a condensed beam for the third time while in Decoding mode, the beam becomes a more powerful Condensed Cluster Beam that fires continuously. This beam will deal up to 4 additional instances of AoE Cryo DMG at 100% of Sandrone's ATK on top of any subsequent original beam fired. Radiance: Stellar Glimmer: The Condensed Cluster Beam attack deals 4 additional instances of AoE Cryo DMG. The DMG dealt with this attack, which is considered the corresponding Stellar Glimmer reaction DMG, is equal to: Radiance: Stellar-Conduct: 80% of Sandrone's ATK. Radiance: Stellar Swirl: 120% of Sandrone's ATK. Additionally, all Stellar Glimmer reaction DMG dealt by Sandrone is elevated by 20%.

PASSIVES_LABEL

Eternal Speculation Engine
Radiance: Stellar Glimmer: When using the Elemental Skill Formule Phenomenale: Differential Analysis, if Fagio's Decoding Power is greater than 50, the second Prism Shot fired by Fagio at nearby opponents will deal 400% of its original DMG as Fagio's Decoding Power is decreased. Additionally, for every 10 points of Decoding Power Fagio loses, it gains 1 stack of Refined Tactics for 60s (max 10 stacks). When Sandrone uses the Elemental Burst Formule Phenomenale: Q.E.D. while in the Radiance: Stellar Glimmer state, all stacks of Refined Tactics are cleared, causing the Convective Inhibition Ray to deal 100% + (number of stacks cleared) × 10% of its original DMG.
A Lady's Code of Conduct
Increases Sandrone's Elemental Mastery based on her ATK. Every 100 ATK will increase her Elemental Mastery by 8. The maximum increase she can gain this way is 160.
Stellar Jubilee: Light of Rationalisme
Sandrone will enter the Radiance: Stellar-Conduct state when she is inside a Polestar Field, or the Radiance: Stellar Swirl state for 8s after a nearby party member triggers a Stellar Swirl reaction. When a party member triggers a Superconduct or Cryo Swirl reaction, it becomes a Stellar-Conduct or Stellar Swirl reaction instead, and the Base DMG of the aforementioned reaction is also increased by 0.7% for every 100 points of Sandrone's ATK. A maximum increase of 14% can be obtained in this way.
A Caucus Prelude and a Long Tale
When Sandrone is in the party, you will gain additional snack rewards after turning in your Daily Commissions with Katheryne.