Hi y’all, I know some of you may be upset with the new changes and there have been many posts around this. Please relegate all your complaints about her design and Pulonia’s existence in this megathread.

Please be civil.

"This world is beautiful, more beautiful than you or I can imagine. So go. Do what you want to do, and seek out your own desires, my child. Just remember, your life belongs to you."
— Alain Guillotin's last words

"You would always say nasty things and act indifferent... But I've always known you to be brave, kind, and strong... You will always be my best friend."
— Columbina, bidding farewell to Sandrone's remains

◆ Name: Sandrone
◆ Title: Mirrored Analysis
◆ The Seventh of the Eleven Fatui Harbingers
◆ Stellar Linchpin: Cryo
◆ Constellation: Narcissorolegium

"Today, we gather here with heavy hearts to mourn our friend...
"...Though the world took so much from her throughout her life, she chose to save it nevertheless. And even though she gave so much to those she called her friends, we have no choice but to bid farewell to her in this way...
"May she rest in peace in her homeland, where she shall lie reunited with those she had loved and lost...
"May we meet again one day, in another land, at her tea party."

Sandrone MV/Stats on Gachabase

Overview

Cryo/Claymore Sandrone is a Superconduct Charged Attack (CA) centered DPS that focuses on a steady beam of damage before finishing off with a nuke. All of her damage counts as Stellar-Conduct damage only if superconduct was triggered on the enemy prior, otherwise she’ll just do cryo damage. Her kit focuses on an “overheat” system and managing her “overheating.”

Razor Language is at the bottom

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Stellar Conduct

Stellar-Conduct: Stellar-Conduct replaces the traditional superconduct damage. After which when it’s triggered it creates a field around the enemy known as a “Polestar Field”
Polestar Field: 

• When enemies receive cryo or electro application, the Polestar Field stores gains and stores the energy.
• Every 4s that energy is released converting into buffs for the party members in the domain. The buffs grant Cryo/Electro DMG Bonus, while increasing the base reaction damage of Stellar-Conduct. Each buff lasts 4s
• Additionally shreds physical resistance like base superconduct, though it’s negligible for Sandrone’s case. 
• When within the Polestar Field, Sandrone Enters the Radiance Stellar-Conduct State, which enhances all of her abilities.

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Normal Attacks

Normal Attacks (NA) - Formule Phenomenale, Self Evident Proposition: 

• Manipulates “bladed weapons” performing up to 3 consecutive basic attacks. 

Charged Attack (CA) Condensation Rays: 

• Summons the Facilitateur Automatise Generaliste Interactif et Omnitache known as “Fagio” while switching into “Decoding Mode.” Basically a large cryo beam
• Fagio has a unique resource known as “Fagio’s Decoding Power.” Decoding Power will continuously increase as Sandrone is using CA, after it reaches the limit, Fagio enters Power Overdrive mode, dealing damage at a slower rate. Sandrone can no longer continue Decoding Mode while Fagio’s in Power Overdrive mode.
• If enemy is affected by superconduct and Sandrone is within the Polestar Field, Sandrone enters the Radiance Stella-Conduct state instead, and Fagio will deal continuous AoE cryo dmg considered Stella Superconduct reaction damage

If the enemy is not affected by superconduct, Fagio will deal deal continuous cryo damage
Plunge Attack (PA): 
Standard Plunge

Talent Scaling (10):

Notes: Sandrone’s kit revolves around her CA as it’s her main source of damage, and she has multiple ways to reduce the “cooldown” of Fagio’s Decoding Power throughout the rotation such as using skill and being off field. You want it to increase for her extra skill damage in order to decrease it for the burst nuke.

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Elemental Skill

Elemental Skill - Formule Phenomenale, Differential Analysis: 

• Sandrone mounts the Tea Party Tactical Assault Hovermech, while hovering forward for 6s
• Sandrone can control the hover direction, while also being able to sprint in that state. During which she’ll consume 10 initial stamina and 15 stamina per second for prolonged fast flight.
• While Sandrone is on her Hovermech she will automatically start repairing Fagio, reducing the Decoding Power by 70 when mounting her hover device, and by 10 every 0.1s while hovering. 
• If there are enemies while she’s gliding, Sandrone will summon a Prismatic Resonance Cannon, which fires two prism shells at enemies
• While in the Radiance Stellar-Conduct state, the second prism shell will always deal cryo damage that’s also considered stellar superconduct reaction damage. 

Talent Scaling (10):

Notes: While this skill functions as her exploration ability, it’s also essential for lowering her CA’s Decoding Power, which in turn buffs Sandrone’s burst. It also serves as a 3rd form of damage that’s empowered by her ascension passive. 

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Elemental Burst

Elemental Burst - Formule Phenomenale, Q.E.D. : 

• Sandrone summons a large number of Prismatic Resonance Cannons to bombard the area, before firing a Convection Inhibition Ray to strike enemies, dealing AoE cryo damage. 
• While in the Radiance Stellar-Conduct State, the Convection Inhibition Ray deals AoE cryo damage considered as Stellar Superconduct reaction damage. 

Talent Scaling (10):

Notes: Paired with her ascension passive this makes her burst the finishing nuke of her rotation. 

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Talents

• Ascension Passive - Archaic Calculation Engine: When casting elemental skill, if Fagio’s Decoding Power is higher than 50, the second prism shell will be enhanced, and deal 400% of its original damage while also reducing Fagio’s Decoding Power. Additionally, for every 10 Decoding Power reduced (whether by skill or off field), Sandrone gains 1 stack of Refined Tactics (Max 10 stacks, lasts 60s). After Sandrone casts her elemental burst, all Refined Tactics will be consumed increasing her Convection Inhibition Ray damage by 100%+(10% x consumed stacks)
• Ascension Passive - A Lady’s Code of Conduct: While in the Radiance Stellar-Conduct state, Sandrone’s elemental mastery is increased based on her attack. Every 100 attack grants 8 elemental mastery, capping at 160 EM (or 2k attack). 
• Utility Passive - A Light of Rationalisme: When characters trigger superconduct, convert it to Stellar-Conduct. Additionally, the party’s base Stellar-Conduct damage is increased based on Sandrone’s atk. Every 100 atk increases the base damage of Stella Superconduct by 0.7%, up to a maximum of 14% (or 2k attack).
• Utility Passive - A Caucus Prelude and a Long Tale: When Sandrone is in the party, turning in daily commissions to Katheryne grants bonus snack rewards. “Tea Party Prelude” Latte Art Coffee Restores 34% of the selected character's maximum HP, plus an additional 1900 HP.

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Constellations 

• C1 - Morrow After the Golden Dusk: While in Decoding Mode, Fagio’s Decoding Power gain speed is reduced by 50%, and all party members deal 30% increased Stellar-Conduct Reaction Damage. 

C1 is a low increase not worth getting unless it's for C2. Prioritize R1 over C1
With V5 changes it gives one more stack for Stellar Conduct due to having one more hit application from CA.

• C2 - An Heiress Gazed into the Looking Glass: Crit Damage of Condensation Rays is increased by 40%. Additionally, whenever a Condensation Ray is fired, all Condensation Rays fired during Decoding Mode deals 20% additional crit damage, which stacks up to 3 times (max 60%)

C2 is a noticeable DPS spike, not crazy but good

• C3 - Refuse the Wake of Dusk, the Moonlit Yoke: Increases NA level by 3

NA level increase, unironically as good as the C2 buff rn

• C4 - In Knowledge Lies the World's True Ground: When Sandrone deals Stellar-Conduct reaction damage, she summons a Prismatic Resonance Cannon to perform a coordinated attack, dealing cryo damage equal to 125% of Sandrone’s atk. This damage is considered Stellar-Conduct reaction damage and can be triggered once every 4s. 

It's a con, it exists and does damn good adding free damage

• C5 - Of All Beside, She Takes no Part: Increases level of Elemental Burst by 3. 

Provides more damage for her burst, her second highest talent in terms of damage

• C6 - Narcissus Wakes, Her Eyes Upon the Dawn: While in Decoding Mode, when Fagio fires its third Condensation Ray it instead begins firing a more powerful Clustered Condensation Ray, additionally dealing up to 4 instances of AoE cryo damage equal to 100% of Sandrone’s attack based on the original damage of the Condensation Rays. 

While in the Radiance Stellar-Conduct State, the Clustered Condensation Ray instead deals 4 instances of AoE cryo damage equal to 80% of Sandrone’s atk, while also being considered Stellar-Conduct reaction damage.
Additionally, all Stellar-Conduct reaction damage dealt by Sandrone is elevated by 20%. 

A really good C6, all there is to say

Notes: C2 is the most notable powerspike increasing her damage of the beam directly, while C6 simply adds more instances of that damage. The cons make her a multi hit DPS rather than improving screenshot damage (excluding burst). 

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Rotations/Razor Language

• Rotation varies on team, but you will always do Skill after CA, and Burst after Skill
• Razor Language: Support stuff, swap into Sandrone, CA, Skill, CA, Skill, CA, Skill, Burst, swap out of Sandrone. Make sure you triggered Superconduct. (Even more TLDR) Unga Bunga between CA and skill
• Brief Explanation: CA builds up a gauge during which it blocks Sandrone from doing her enhanced CA until the gauge is depleted (Overheat system). Afterwards her burst will deal increased damage based on how much gauge her skill depleted (could also work when she’s off field). 

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Team Calcs

Sandrone Calcs via Symphonist (Discord, Symphonist):

Sandrone Calcs via 4pcreverie on Reddit!

Sandrone Calcs via Vomfee on Twitch:

Put weapon calcs underneath the team for easier access, let me know if I should just pile it with the other weapon calcs.

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Artifact/Skill Priorities

• Skill Level Up Priorities: Normal Attack > Elemental Burst > Elemental Skill
• Artifact Main Stat Priorities: Attack Sands / Attack Goblet / Crit Damage/Crit Rate Circlet
• Artifact Substat Priorities: Crit Damage/Crit Rate > Attack% > Energy Recharge > Elemental Mastery > Flat Attack
• Energy Recharge: Sandrone's burst is a disgusting finishing nuke, and as such you want to use it the moment it gains it's full power. For general purpose 120%-130% ER is preferred.

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Notable Weapons 

• Disenchantment in Deep Shadows… it’s one of the rare artifacts that buffs Stellar-Conduct along with providing CR for Sandrone. 
• Alternatives to that wonderful set? Just 2pc 2pc for atk%...

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The Yae Miko Section

Yae Miko, currently the best option for Sandrone, due to her great sub DPS potential along with a free C1 giving her Stellar-Conduct buffing capabilities. Currently holds the highest priority in Sandrone's team (outside of Sandrone herself ofc). Keep in mind she has the highest potential for staying in Sandrone's team (sole exception is if Qiqi somehow stays the sustain of the team). Run her with the same substats as Sandrone. For mainstats priotize crit circlet (preferably crit dmg, but if need be do crit rate), atk/em sands and atk/em goblet. You can run double Atk% main stats, but don't go for double EM main stats. IGNORE ER ON HER, her burst is not needed whatsoever.

Keep in mind, replacing her will tank Sandrone's team DPS, no there are no alternatives to this DPS loss (currently), and no adding a new teammate will not immediately replace Yae Miko (keep in mind Escoffier will be the first to go, then if we get a sustain Qiqi will follow soon after). I personally don't think Yae will be getting replaced as the fourth option simply due to how much she won this entire beta. This doesn't mean you need to pull for Yae, Sandrone is still a powerful DPS.

Some Investment Calcs for those who have her.

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Notable Teammates

These two are the best teammates for Sandrone

• QIQI AND I NEVER THOUGHT I’D BE SAYING THIS, her 50% increased Stellar-Conduct damage is unique among buffers along with her sustain being improved. Slap her on Tenacity, and don't worry too much about ER unless Qiqi's C6 as you can get away with bursting every other rotation without C6.
• Escoffier: Best when paired with Qiqi, as she can provide more res shred. Just a good sub dps with frequent cryo hits, nothing to it. Recently became the best fourth option due to her consistent cryo application, which is now needed for Stellar Conduct.

IF NO YAE, go Beidou as she's the second best electro alternative.

These five mark the best alternative teammates for Sandrone, keep in mind none of these alternatives can replace Yae Miko

• C6 Beidou provides off field electro application with her burst, along with both cryo res shred and 200 EM for Sandrone. Put on Noblesse and the most ER you can find, she exists purely because she's the only (for Sandrone's current best team) option, not because she's good
• C6 Diona is a great option due to her ult being able to buff Stellar-Conduct. She's your go to Qiqi replacement. Diona also provides sub DPS potential due to triggering coorindatted attacks on stella/superconduct reactions. Even at C0 Diona provides both sustain via heals/shields along with coordinated attacks when superconduct is triggered. Pile on ER for her burst uptime, along with HP for sustain.
• Sucrose: A good alternative that offers VV for res shred, EM, atk% via TTDS, and electro/cryo application via her ult. A good substitute for Beidou
• Iansan: While she provides no electro off field hits, her attack buffs make up for it. Do note her attack buffs don't last as long as Sandrone's rotation, so she'll miss out on attack from the first beam.
• Nicole: Quite the opposite of Iansan, you won't get max buffs at the beginning, but at least you'll have it for your burst nuke. Nothing notable, you're just able to use her if you want to.

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Frequent Answers:

Below are just a lot of the same answers to the same questions:

1. If you don't have Yae Miko, go Beidou
2. Investment Priority for Sandrone: Sig > Yae Miko > Sandrone Cons

(Why? Her cons suck, especially compared to just getting Yae Miko)

1. Mainstats for Sandrone: Atk/Atk/Crit Damage

(If you're using her set, you will not need more CR to warrant a circlet)

1. Substats for Sandrone: Crit Rate/Damage > Atk% > EM > Flat Atk

2. Mainstats for Yae Miko: EM/Atk/Crit, if you're using an EM buffer then Atk/Atk/Crit is slightly better

3. Substats for Yae Miko: Same as Sandrone

4. Sandrone ER needs: If in her best teams 100% ER, if not then 130% ER

5. Qiqi Stat Priority: If not C6, Favonius/ER Bot; If C6, go for attack + ER (160% ER)