Geo

Sword

Albedo

Kreideprinz

TierS

RolesSub DPS · Support

Release1.2

The Knights of Favonius' Chief Alchemist is a DEF-scaling off-field Geo sub-DPS: one press of his Skill plants a Solar Isotoma that keeps blooming for 30 seconds. Since becoming a Hexerei character, he also spawns Silver Isotomas that keep blooming even when the main Isotoma is gone, and buffs his whole team based on his DEF, which puts him back among the best sub-DPS of version 7.1.

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Off-field Geo sub-DPS

Weapons

Uraku Misugiri BiS

5★ · CRIT DMG

Best for personal damage: CRIT DMG, DEF% and a big Skill DMG bonus that doubles after Geo DMG.

+20% DEF, +16% Normal Attack DMG and +24% Elemental Skill DMG, doubled for 15s after a party member deals Geo DMG.

Peak Patrol Song

5★ · DEF%

Best for the team: DEF% and a party Elemental DMG buff based on his DEF (needs a few on-field hits).

Normal or Plunging hits stack up to +16% DEF and +20% Elemental DMG; at 2 stacks the party gains 8% Elemental DMG per 1,000 DEF (max 25.6%).

Cinnabar Spindle

4★ · DEF%

Event 4-star made for him: adds 40% of his DEF to Skill DMG.

Elemental Skill DMG is increased by 40% of DEF (once every 1.5s).

Flute of Ezpitzal

4★ · DEF%

Craftable: DEF% and +16% DEF after his Skill.

+16% DEF for 15s after using an Elemental Skill.

Harbinger of Dawn

· CRIT DMG

3-star CRIT DMG option, as long as he stays above 90% HP.

+14% CRIT Rate while HP is above 90%.

Artifacts

Husk of Opulent Dreams ×4

Best: lots of DEF (helps reach 3,000) and Geo DMG Bonus. Stacks while off-field; wait for full stacks before a fight.

Set effects

2pDEF +30%.

4pGains Curiosity stacks from Geo hits (or every 3s off-field), each giving +6% DEF and +6% Geo DMG Bonus (max 4 stacks).

Golden Troupe ×4

Up to +70% Skill DMG off-field: better personal damage when you already have enough DEF.

Set effects

2pElemental Skill DMG +20%.

4pElemental Skill DMG +25%, and another +25% while off-field (lost 2s after taking the field).

Husk of Opulent Dreams ×2

Golden Troupe ×2

Placeholder: +30% DEF and +20% Skill DMG.

Set effects

2pDEF +30%.

2pElemental Skill DMG +20%.

Main stats

Sands of Eon

DEF%

Goblet of Eonothem

Geo DMG Bonus / DEF%

Circlet of Logos

CRIT Rate / CRIT DMG

Substat priority

1CRIT Rate 2CRIT DMG 3DEF% 4Energy Recharge

Stat targets

DEF 3,000 in Hexerei teams to cap both team buffs; 2,300+ elsewhere
CRIT Rate 60–70%, CRIT DMG 140%+
Energy Recharge 120–140% at C0 (130–150% as the only Geo), 100–110% from C1

Talent priority

Elemental Skill

Elemental Burst

Normal Attack

Take a DEF% goblet instead of Geo DMG if you are short of 3,000 DEF in Hexerei teams. Level 90 matters too: most of his base DEF comes from his character level.

Teams

Recommended teams

Hexerei Klee

Klee

Albedo

Durin

Bennett

Three Hexerei characters: Klee carries, Durin shreds Pyro RES, Albedo adds off-field damage and up to 30% DMG for his Hexerei teammates.

Zibai Lunar-Crystallize

Zibai

Albedo

Illuga

Columbina

Geo Resonance, off-field Geo damage and the 12% party buff. No second Hexerei character here, so 3,000 DEF is enough to cap the 12% buff. At C6, the active character also gains +17% DMG while Moondrifts are inside his Isotoma.

Mono Geo

Arataki Itto

Albedo

Gorou

Zhongli

The classic: Gorou's DEF and Geo buffs boost both Itto and Albedo, Zhongli shields and shreds RES.

Guide

How to play

How he works

Abiogenesis: Solar Isotoma (Skill, 4s cooldown) creates a Solar Isotoma for 30s. When enemies inside it take damage, it generates Transient Blossoms that deal Geo DMG based on his DEF (once every 2s). It is a Geo construct, and standing at its center lifts you up on a platform.
Rite of Progeniture: Tectonic Tide (Burst, 40 Energy) deals AoE Geo DMG and, if the Isotoma is out, 7 Fatal Blossoms. Homuncular Nature: the Burst gives the party +125 Elemental Mastery for 10s.
Hexerei: Secret Rite (after the Witch's Homework quest "Beyond the Lesson", with at least 2 Hexerei characters in the party): Skill hits within 20s of using his Skill spawn up to 2 Silver Isotomas (10s) near enemies. They keep generating Transient Blossoms even when the Solar Isotoma is gone, and Calcite Might adds 240% of his DEF to Blossom DMG while one is up.
Team buffs: creating a Solar Isotoma gives the party +4% Normal, Charged, Plunging, Skill and Burst DMG per 1,000 DEF (max 12%); a Silver Isotoma gives Hexerei teammates +10% per 1,000 DEF (max 30%). 3,000 DEF caps both.

Rotation

Press E at the start of the rotation, then swap out.
Press E again when you come back to refresh the Silver Isotomas and the buffs.
At C0–C1, fire Q when ready for its damage and the EM buff. At C2, you can skip it: his off-field Fatal Blossoms trigger on their own.

Before Hexerei, his Isotoma could be destroyed by some bosses; Silver Isotomas solve that problem, so always pair him with another Hexerei character (Durin, Klee, Venti, Mona, Fischl, Sucrose, Nicole…).

Strengths

Strong off-field Geo damage from a single Skill press
Team-wide DMG buff scaling with his DEF, much bigger for Hexerei teammates
Tiny field time and low Energy needs
Fits Hexerei, Geo and Lunar-Crystallize teams

Weaknesses

Needs a second Hexerei character to reach his full potential
3,000 DEF plus good CRIT stats takes investment
His Hexerei upgrade is locked behind a quest

Notable dupes · Constellation

Solid upgrade

Blossoms restore Energy; with Hexerei, his Skill also grants +50% DEF for 20s.

Big upgrade

Fatal Reckoning stacks boost his Burst; with Hexerei, 4 stacks trigger 3 off-field Fatal Blossoms (300% DEF) on their own. His best constellation.

Optional

Plunging Attack DMG bonuses: only for plunge teams.

Solid upgrade

+17% DMG for the active character inside the Isotoma when shielded by Crystallize or when Moondrifts are present, and his Burst consumes Silver Isotomas for much stronger Fatal Blossoms.

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Updated September 25, 2026 · Version 7.1

Sources & references