Precious Fossilized Core Overview
what it doesPrecious Fossilized Core is an A-Rank Stun W-Engine in Zenless Zone Zero with 595 base ATK and 15% Impact at max level; it is a recommended budget W-Engine for Lighter.
- Rank
- A-Rank
- Specialty
- Stun
- Base ATK (max)
- 595
- Substat
- Impact 15%
- Best for
- Lighter
- Refinements
- R1 – R5
Passive by Refinement
R1 → R5| Rank | Passive effect |
|---|---|
| R1 | Daze +10% vs targets with HP ≥ 50%. Additional +10% Daze vs targets with HP ≥ 75%. |
| R2 | Daze +12.5% vs targets with HP ≥ 50%. Additional +12.5% Daze vs targets with HP ≥ 75%. |
| R3 | Daze +15% vs targets with HP ≥ 50%. Additional +15% Daze vs targets with HP ≥ 75%. |
| R4 | Daze +17.5% vs targets with HP ≥ 50%. Additional +17.5% Daze vs targets with HP ≥ 75%. |
| R5 | Daze +20% vs targets with HP ≥ 50%. Additional +20% Daze vs targets with HP ≥ 75%. |
Stat Progression
Lv10 → Lv60| Stat | Lv10 | Lv20 | Lv30 | Lv40 | Lv50 | Lv60 | Max |
|---|---|---|---|---|---|---|---|
| Base ATK | 40 | 114 | 211 | 313 | 410 | 503 | 595 |
| Impact | 6% | 7.5% | 9% | 10.5% | 12% | 13.5% | 15% |
Max column is Lv60 after the final Modification.
Best Agents
recommended on
Lighter
Fire · Stun
Qingyi
Electric · Stun
Von Lycaon
Ice · Stun
Trigger
Electric · Stun
Dialyn
Physical · Stun
Ju Fufu
Fire · Stun
Nangong Yu
Ether · Stun
Koleda
Fire · Stun
Anby Demara
Electric · Stun
Pulchra
Physical · Stun
Passive active on Stun agents: Roxy, Norma, Lighter, Qingyi, Von Lycaon, Trigger, Dialyn, Ju Fufu, Nangong Yu, Starlight Billy, Koleda, Anby Demara, Pulchra.
Precious Fossilized Core FAQ
quick answersWhat does Precious Fossilized Core do in Zenless Zone Zero?
Precious Fossilized Core is an A-Rank Stun W-Engine. At max level it provides 595 base ATK and 15% Impact. Its passive at R1: Daze +10% vs targets with HP ≥ 50%. Additional +10% Daze vs targets with HP ≥ 75%.
Is Precious Fossilized Core worth refining to R5?
Refinement only upgrades the passive, not the base stat or substat. At R1 the passive reads: Daze +10% vs targets with HP ≥ 50%. Additional +10% Daze vs targets with HP ≥ 75%. At R5 it reads: Daze +20% vs targets with HP ≥ 50%. Additional +20% Daze vs targets with HP ≥ 75%. That is 2× the R1 values. A- and B-Rank copies come from the standard banner and shop, so refining is cheap and usually worth it.
What is the max base ATK of Precious Fossilized Core?
Precious Fossilized Core reaches 595 base ATK at max level (Lv60, Modification 5), starting from 40 at Lv10. Its Impact substat grows from 6% to 15%.
Which agents can equip Precious Fossilized Core?
Only Stun agents can use Precious Fossilized Core's passive — any agent can slot it, but the passive stays inactive on other specialties. Stun agents include Roxy, Norma, Lighter, Qingyi, Von Lycaon, Trigger, Dialyn, Ju Fufu and 5 more.