Reaction explainer · Luna VIII
Sandrone & Stellar-Conduct, explained
Short orientation for the new Cryo–Electro reaction and its debut enabler — glossary definitions plus a practical try-before-you-pull checklist. Not a C6 ranking guide.
Companion to the Luna VIII overview. Last reviewed July 31, 2026.
Stellar-Conduct in one paragraph
Think of it as a new transformative / field reaction between Cryo and Electro. When it triggers, a Polestar Field appears. Inside that field, excess Cryo/Electro application can bank as energy that converts into damage buffs and Physical RES shred for enemies. Some Cryo/Electro characters gain unique Radiance behavior in the field — that is character-specific, so read the trial tooltips.
Glossary entries: Stellar-Conduct, Polestar Field.
Sandrone’s role (official pitch)
- 5★ Cryo Claymore — Seventh of the Fatui Harbingers.
- Enables Stellar-Conduct / Polestar Field for the party.
- Commands Fagio for Charged Attack patterns, Skill mobility, and Burst pressure.
- Built around Decoding Power resource management — learn the trial loop before spending.
When a character sheet exists on GachaHaven, link it from here. Until then, use the Wish Character Trial and your own Abyss / Theater clears as the truth source.
Try-before-you-pull checklist
- Run Sandrone’s Character Trial with your real Electro applicator (Fischl, Ororon, Raiden, etc.).
- Ask: does Polestar Field uptime feel automatic, or do you drop the reaction every rotation?
- Check remaining Luna VIII rewards and whether Phase 2 banners (Columbina / Raiden) matter more for your roster — Phase 2 overview.
- Mirror pity in the pity calculator before you commit.
Honesty box
We will not publish Sandrone constellation tiers, fake artifact substat thresholds, or “Stellar-Conduct is dead / meta forever” takes. Reaction value depends on upcoming Snezhnaya kits too — see 7.0 prep.