
Nicole reads like a Pyro Catalyst, so the first instinct is to build her as a sub-DPS: crit weapon, Pyro goblet, balanced crit ratio. That instinct is wrong, and it quietly wastes most of her kit. Nicole is an ATK-scaling support, not a damage dealer. Her Elemental Skill, Revelation: Uncreated Light, does two jobs at once — it drops a shield and hands the whole team an ATK buff that scales off her own ATK. So you build ATK first, add just enough Energy Recharge to keep her Burst on schedule, and pour talent levels into the Skill before anything else. Do that and she does her real job: walk in, buff and shield the team, and get out.
Her teamwide ATK buff scales off Nicole’s own ATK, and so does her shield. That single fact decides the whole build. Stacking ATK improves the buff, hardens the shield, and feeds her off-field Pyro contribution at the same time — one stat, three payoffs. On most Pyro units an ATK goblet is a compromise. On Nicole it is the job description: enter, establish buff and protection, then hand the field to your carry.
Force her into a crit-heavy personal-damage role and you trade away the parts of the kit the rest of your team actually relies on. A prettier crit page on the character screen does not convert into more team damage when her contribution is buff-and-shield, not on-field DPS.

Pick the catalyst that gives Nicole the most base ATK and ATK% so you push toward her roughly 4,000 ATK buff cap. Her signature catalyst, Angelos’ Heptades (datamined as “Seven Edicts of Dust and Light”), is best in slot: very high base ATK with an ATK% main stat, plus a passive that grants the active character a DMG buff and restores energy. It is built to do exactly what she needs.
If you do not have it, two standard 5-star catalysts cover the gap cleanly. Skyward Atlas brings a high base ATK and ATK% — the personal damage is incidental, the point is the stat she cares about. Memory of Dust leans into ATK and interacts well with shielded uptime, which Nicole maintains naturally, so it lines up with her support role. Both sit just behind her signature, and both help close the distance to that ATK cap.
For lower-rarity options, do not overthink it. A catalyst with ATK% beats one that only adds crit, and an Energy Recharge catalyst becomes correct the moment your Burst starts dropping out of rotation. Avoid selfish crit weapons that expect long on-field attack strings — Nicole’s value is front-loaded into setup and off-field presence.
The stat line is settled even where the set list is not. Build ATK first, Energy Recharge second, crit last, because she is not a primary damage dealer. That gives a clean main-stat template:
If an ER Circlet looks wasteful, think in terms of rotational efficiency. Her Burst is a secondary priority but still part of the support package. If she misses every other Burst, an ER Circlet beats an ATK Circlet in real combat simply by restoring consistency. Once Burst timing is stable, swap back to ATK for stronger buff and shield scaling.
For substats, prioritize ATK% and Energy Recharge. Flat ATK is not ideal but is not dead on an ATK-scaling support. Crit Rate and Crit Damage are luxuries here — a low-crit spread can be correct if it gives you better ATK and smoother rotation timing.
Set choice matters less than getting the stat profile right. A support set that boosts team damage after Nicole casts is preferable when its trigger is easy to maintain. If you do not have a clean four-piece, mixed pieces with ATK% + ATK% or ATK% + Energy Recharge are a low-risk fallback — Nicole gains more from reliable stats than from forcing a fancy set bonus on weak substats.

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This part is not ambiguous. Level Elemental Skill first, then Elemental Burst, and leave Normal Attack for last. The Skill, Revelation: Uncreated Light, drives both the ATK buff and the shield strength — when one talent raises offense and protection together, it is the obvious first investment.
If resources are tight, raise the Skill to a high level before spending heavily on the rest of the kit — favor Skill before Burst rather than splitting evenly. Normal Attack can stay at level 1 on a pure support build; only raise it if you are deliberately running an on-field variant, which the support build does not need.
For character level, take Nicole to 90. Because her buff and shield scale off her ATK, base-stat growth from the final ascensions directly increases what she gives the team — this is one support where the push to 90 genuinely pays off, though it is still less urgent than getting Skill levels in place first.
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Because Nicole is a recent release, check her exact ascension and talent materials in your own client before bulk farming: open Character → Nicole → Ascension Preview and Talents. Localization names on a new character settle over time, and the in-game preview is always the authoritative list.
Once you have confirmed the requirements, farm for value, not completion. Spend Resin first on her ascension boss material until you hit the tier needed for your next Skill breakpoint, then move to the talent-book domain on its rotation days and funnel those books into Skill first, Burst second.

The main waste case is pre-farming too broadly. Do not sink books into Normal Attack just because the menu lists it. Do not overfarm Energy Recharge pieces if a single weapon swap would already fix your rotation. For Nicole, focused investment beats symmetrical investment every time.
Keep her field time short. Cast her Skill early so the team gets the ATK buff and shield before the main damage window opens, fire her Burst in the same setup sequence if it is up, then swap out. The goal is never extra normal attacks — it is establishing the support package and handing the field to your carry.
Treat the shield as interruption control first, raw tanking second. If it lets your carry finish a combo inside a damage window without getting staggered, it has done its job. That is also why Skill levels matter so much: a stronger shield is uptime, not just safety, and her ATK-based off-field contribution keeps paying out after she leaves.
Build Nicole as an ATK-based support system, not a Pyro Catalyst damage dealer. Stack ATK, add enough Energy Recharge to keep rotations stable, and pour talent levels into Revelation: Uncreated Light before anything else. Use Angelos’ Heptades if you have it, Skyward Atlas or Memory of Dust if you do not, take her to level 90, and lead every rotation with her Skill. Hit those marks and the rest of the build decisions get easy.