

Recent Endgame Usage
Overview
Fischl keeps Oz attacking while teammates drive reactions. Her quest-unlocked Hexerei branch also supplies ATK or EM buffs with a second Hexerei teammate. Sacrificial Bow can support shorter Klee rotations, while Rising Winds offers a separate, quest-dependent artifact option.
Role
Off-field Electro damage and conditional Hexerei support.
Playstyle
Plan Oz summons around the driver’s window; choose the refresh cadence for the team.
Why It Works
With her Homework complete and two Hexerei characters, Overloaded activates an ATK buff; Electro-Charged or Lunar-Charged activates an EM buff while Oz is present.
Watch For
The buffs need their actual reaction triggers. Aggravate alone does not activate them.
Playstyle
Combat Flow
Summon Oz → support setup → driver’s damage window → refresh Oz. Normally alternate Skill and Burst. Short Klee rotations can instead use Sacrificial Bow to reset Skill and Burst each rotation.
Key Notes
Complete Witch’s Homework: Of the Unexpected and include another Hexerei character for Secret Rite.
With Oz present, Overloaded grants 22.5% ATK for 10 seconds. Electro-Charged or Lunar-Charged grants 90 EM for 10 seconds to Fischl and nearby active party members.
A C6 coordinated attack doubles those Hexerei buffs for 10 seconds.
For 16–18-second Klee rotations, Sacrificial Bow needs R4 or higher. Its value is rotation-specific; Bennett teams can favor an offensive bow instead.
Build & Investment
Best Weapons




Sacrificial Bow
Skill resets improve Oz coverage in 16–18-second loops. This is not a universal replacement for damage bows.
Best Artifact Sets


A Day Carved From Rising Winds
Attack hits grant ATK and, after Homework, 20% CRIT Rate. It triggers off-field; account for its CRIT before choosing a circlet.

Tenacity of the Millelith
Oz sustains the ATK buff when supporting the carry is worth more than Fischl’s personal damage.
Main Stats
Sands
- ATK%
- EM as an Aggravate alternativeAlternative
Goblet
- Electro DMG Bonus
Circlet
- CRIT Rate
- CRIT DMGAlternative
Recommended Substats
- ER for the planned Oz loop
- CRIT
- ATK%
- Elemental Mastery in Aggravate
ER Requirements & Stat Targets
- Solo-Electro ER · extended Oz loop
- 120–140%
Constellation Investment
Extends Oz’s duration and adds coordinated attacks. After a coordinated hit, the quest-unlocked Hexerei ATK and EM buffs double for 10 seconds.
Teams
Recommended Teammates
Most-played compositions in our calculations. These reflect popularity and what players actually use, not a power ranking.
Most Played With
Talents
Normal Attack
Bolts of Downfall
Normal Attack
- 1-Hit DMG
- 87.2%
- 2-Hit DMG
- 92.5%
- 3-Hit DMG
- 114.9%
- 4-Hit DMG
- 114.1%
- 5-Hit DMG
- 142.5%
Charged Attack
- Aimed Shot
- 86.7%
- Fully-Charged Aimed Shot
- 223%
Plunging Attack
- Plunge DMG
- 112.3%
- Low/High Plunge DMG
- 225%/281%
Elemental Skill
Nightrider
- Oz's ATK DMG
- 159.8%
- Summoning DMG
- 208%
- Oz's Duration
- 10s
- CD
- 25s
Elemental Burst
Midnight Phantasmagoria
- Falling Thunder DMG
- 374%
- CD
- 15s
- Energy Cost
- 60
Passive talents
Passive talent
Stellar Predator
Passive talent
Undone Be Thy Sinful Hex
Passive talent
Mein Hausgarten
Passive talent
Witch's Eve Rite: Phantasmal Nocturne
Constellations
C1Gaze of the Deep
C2Devourer of All Sins
C3Wings of Nightmare
C4Her Pilgrimage of Bleak
C5Against the Fleeing Light
C6Evernight Raven
Stats & progression
Level 100
Maximum ascensionLevel 100 Maximum ascension | HP9825 | ATK307 | DEF635 | ATK%24% |
| Level | HP | ATK | DEF | Asc. stat |
|---|---|---|---|---|
| 1 | 770 | 20 | 50 | 0% |
| 20 | 2555 | 68 | 165 | 0% |
| 40 | 4236 | 113 | 274 | 6% |
| 50 | 5418 | 144 | 350 | 12% |
| 60 | 6463 | 172 | 418 | 12% |
| 70 | 7508 | 200 | 485 | 18% |
| 80 | 8553 | 227 | 553 | 24% |
| 90 | 9189 | 244 | 594 | 24% |
| 100 | 9825 | 307 | 635 | 24% |












