Sandrone is finally playable. The Fatui Harbinger who was presumed dead after the fight with Il Dottore is making her return in Genshin Impact version 6.7 (Luna VIII), launching on July 1, 2026. She's a 5-Star Cryo claymore user who introduces an entirely new reaction to the game called Stellar-Conduct, and early testing of her kit suggests she's built to anchor the Snezhnaya meta for versions to come.
What is Sandrone's role in Genshin Impact?
Sandrone functions as a Cryo DPS and reaction enabler built around her companion Fagio (the Facilitatrice Automatisee Generaliste Interactive et Omnitache). Her kit converts Superconduct into the new Stellar-Conduct reaction, which she then amplifies through her passives and Elemental Burst. Think of her as a character whose damage ceiling scales with how well you manage Fagio's Decoding Power meter.
Her base stats at max level include 13,226 HP, 342 ATK, 752 DEF, and a 19.2% Crit Rate bonus, making her a solid stat foundation for a primary DPS slot.
Genshin Impact Guide: Sandrone Kit, Materials, and Constellations
Sandrone's Kit
Normal Attack: Formule Phenomenale: Self-Evident Proposition
Sandrone performs up to 3 consecutive strikes on tap. Holding the normal attack button summons Fagio and switches it into Decoding Mode, which is where most of her damage comes from.
In Decoding Mode, Fagio unleashes a sweeping fire attack and fires condensed beams dealing AoE Cryo damage. Each beam increases Fagio's Decoding Power. When that meter hits 100, Fagio enters Power Overdrive Mode, attacking at longer intervals with Cryo damage but losing the ability to return to Decoding Mode until Decoding Power drops back below 50.
When Sandrone is off-field, Decoding Power decreases at 300% the normal rate, so keeping her on-field during Decoding Mode is a priority.
Elemental Skill: Formule Phenomenale: Differential Analysis
Sandrone boards the Tea Party Tactical Assault Hovermech and hovers forward for 6 seconds. You control the direction. Pressing Sprint burns 10 Stamina for a speed boost, then drains 15 Stamina per second in high-speed mode.
On activation, if enemies are nearby, Sandrone fires 2 Prism Shots at opponents who haven't cooled down yet, dealing Cryo damage. In Radiance: Stellar-Conduct state, the second Prism Shot deals Cryo damage counted as Stellar-Conduct damage.
The Skill also repairs Fagio mid-flight, but this comes at a cost: Decoding Power drops 40 points at the start of the ride, then continues falling by 10 points every 0.1 seconds while hovering.
Elemental Burst: Formule Phenomenale: Q.E.D.
Sandrone summons a volley of Prismatic Resonance Cannons and fires a Convective Inhibition Ray dealing AoE Cryo damage. In Radiance: Stellar-Conduct state, the ray's damage is considered Stellar-Conduct damage, which unlocks the stacking bonus from her second passive.
Genshin Impact Guide: Sandrone Kit, Materials, and Constellations
Passive abilities explained
- Light of Rationalisme: Converts Superconduct into Stellar-Conduct for the whole party. Every 100 ATK Sandrone has increases Base Stellar-Conduct damage by 0.7%, capped at 14%. When she's inside a Polestar Field, she enters Radiance: Stellar-Conduct state.
- Archaic Calculation Engine (Radiance: Stellar-Conduct): If Fagio's Decoding Power exceeds 50 when the Skill fires, the second Prism Shot deals 400% of its original damage as Decoding Power decreases. Every 10 points of Decoding Power lost grants 1 stack of Refined Tactics (max 10 stacks, lasting 60 seconds). Using her Burst while in Radiance: Stellar-Conduct clears all stacks, boosting the Convective Inhibition Ray to deal (100% + stacks cleared x 10%) of its original damage.
- A Lady's Code of Conduct: Every 100 ATK increases Sandrone's Elemental Mastery by 8, up to a maximum of 160. This makes ATK stacking doubly valuable.
- A Caucus Prelude and a Long Tale: Bonus snack rewards from Daily Commissions when Sandrone is in the party.
All six Sandrone constellations
C1 is the standout early constellation. Slowing Decoding Power growth gives you more control over when Fagio enters Power Overdrive Mode, and the 30% party-wide Stellar-Conduct damage buff is significant for any team built around this reaction.
C2 diverges between sources slightly in exact percentages, so treat those numbers as close approximations until the official release confirms final values.
Sandrone constellation overview
What ascension materials does Sandrone need?
Sandrone's ascension requires Shivada Jade gems, Subdetection Unit as her specialty material, Plume of the Fallen Watcher as her boss drop, and Drive Shaft items across three tiers.
Full ascension totals:
- x1 Shivada Jade Sliver
- x9 Shivada Jade Fragment
- x9 Shivada Jade Chunk
- x6 Shivada Jade Gemstone
- x168 Subdetection Unit
- x46 Plume of the Fallen Watcher
- x18 Broken Drive Shaft
- x30 Reinforced Drive Shaft
- x36 Precision Drive Shaft
- 420,000 Mora
What talent materials does Sandrone need?
Sandrone's talents use Vagrancy books and Drive Shaft materials, with Madman's Restraint as the weekly boss material and a Crown of Insight at max level.
To max all three talents, you'll need:
- x3 Crown of Insight
- x9 Teachings of Vagrancy
- x63 Guide to Vagrancy
- x114 Philosophies of Vagrancy
- x18 Broken Drive Shaft
- x66 Reinforced Drive Shaft
- x93 Precision Drive Shaft
- x18 Madman's Restraint
- 4,957,500 Mora
That Mora cost is steep. If you're resource-limited, prioritize her Elemental Burst first, then the Normal Attack (which governs Fagio's Decoding Mode), and leave the Elemental Skill for last.
Is Sandrone worth pulling in version 6.7?
Sandrone's kit is built around a brand-new reaction type, which means her value is tied directly to how much content HoYoverse designs around Stellar-Conduct going forward. Given that she's explicitly positioned as the Snezhnaya arc's anchor character (the same role Ineffa played for Nod-Krai), the long-term investment case is strong.
For more character guides, builds, and farming resources across this open world game, the full Genshin Impact guide collection has everything you need to stay ahead of each new version.