This full guide explains Fluff of Fearlessness as a usable Arc, not just a database entry. It covers stats, effect timing, mixing value, rotation fit, signature comparisons, and upgrade priorities.
The level table is the starting point for any serious comparison.
| Level | ATK | CRIT Rate |
|---|---|---|
| 20 | 377 | 8.8% |
| 30 | 398 | 11% |
| 40 | 420 | 13.2% |
| 50 | 443 | 15.4% |
| 60 | 466 | 17.6% |
| 70 | 489 | 19.8% |
| 80 | 512 | 22% |
The Arc is defined by a 10-second post-Ultimate ATK window, so timing is more important than the text first suggests.
| Mixing level | Effect |
|---|---|
| Base / A1 | ATK +25% for 10 seconds after the wearer casts an Ultimate. The effect does not stack. |
| A2 | ATK +30% for 10 seconds after Ultimate. |
| A3 | ATK +35% for 10 seconds after Ultimate. |
| A4 | ATK +40% for 10 seconds after Ultimate. |
| A5 listed value | ATK +45% for 10 seconds after Ultimate. Check the current in-game mixing screen before investing. |
Do not judge the Arc only from a single number. Judge whether the holder can spend the buff window dealing damage.
The cleanest test begins with the holder on field, casts Ultimate, and then continues the normal damage route. If the holder stays active and lands the most important hits inside the 10 seconds, Fluff of Fearlessness is doing exactly what it wants to do.
If the rotation requires swapping away, waiting for another setup, or spending most of the buff duration moving, the Arc loses practical value even if the stat line looks good.
The 22% CRIT Rate substat can make burst damage feel more stable. Builds with high CRIT Damage but low CRIT Rate often look impressive in theory but feel inconsistent in practice. This Arc helps reduce that inconsistency.
Because the Arc supplies CRIT Rate, players can look for complementary stats elsewhere. The goal is not to stack one stat blindly; it is to reach a balanced final profile.
A dedicated signature Arc may beat Fluff of Fearlessness on its intended character. That does not make Fluff useless. It is most valuable when a player does not own every signature option, needs a second-team Arc, or wants a flexible Solid damage piece.
The fair test uses the same fight, same team, and same rotation. If the signature wins by a lot, keep it. If the gap is modest and Fluff can move between characters, account value may favor flexibility.
Mixing raises the ATK buff, but the value of each step depends on how often you use the holder.
At base value, the Arc already provides its main identity: CRIT Rate and a post-Ultimate ATK buff. For many accounts, one copy is enough to make the Arc useful if the holder is correct.
The base copy is the most important decision point. If the Arc is not good for your roster at base, higher mixing should not be used to force it.
A2 and A3 improve the ATK buff, but they still rely on the same window. These levels feel best on a character who already proved that the rotation works. They are less attractive if the holder is still uncertain.
Before chasing higher mixing, ask whether another Arc or character upgrade would improve your account more.
A4 and A5 listed values push the buff higher, but high investment should be reserved for a core build. This is where players should compare against signature Arcs, team needs, and long-term plans.
If Fluff of Fearlessness is only a temporary bridge, keep it at a practical level and save expensive resources.
The Arc is strong in the right context and mediocre when forced into the wrong one.
You have a Solid DPS, need CRIT Rate, lack a stronger signature Arc, and can use the 10-second post-Ultimate window. This is the cleanest profile for Fluff of Fearlessness.
The Arc is also useful for accounts that need a second damage option without waiting for a specific banner.
Your main damage dealer already owns a stronger dedicated Arc, your account needs support utility, or you cannot afford to upgrade another damage Arc. The best S-Rank item is not always the best account decision.
Skipping does not mean the Arc is bad. It means another resource solves a more urgent problem.
Use the materials table before committing to a full level 80 push.
| Material | Total amount |
|---|---|
| Beetle Coin | 420,000 |
| Flavorless Cold Dessert | 14 |
| Suspended Delusions | 14 |
| Plain Cold Dessert | 18 |
| Yearning Delusions | 18 |
| Special Cold Dessert | 18 |
| Transcendent Delusions | 18 |
Use these comparisons before calling the Arc best-in-slot or skipping it.
A signature Arc may have mechanics designed specifically for one character, so it often wins on that character when both items are upgraded equally. Fluff of Fearlessness competes by being flexible, easy to use, and helpful when signature options are missing.
If the signature Arc wins clearly, use it. If the gap is small and Fluff can move between characters, account flexibility can matter more than a narrow damage difference.
A lower-rarity Arc can be better temporarily if it is already upgraded or has a more suitable effect. Rarity is important, but it does not erase upgrade level, rotation fit, or team needs.
Compare performance at realistic investment levels. A theoretical max-level comparison may not match what your account can actually afford today.
Another selector reward may be better if it fixes a role Fluff does not cover. If your teams lack support, utility, or survivability, a damage Arc may not solve the real problem.
The correct comparison starts with account needs, then moves to item strength.
Use these comparisons before calling the Arc best-in-slot or skipping it.
A signature Arc often has the advantage when it is designed around a character's exact kit. Fluff of Fearlessness competes as a flexible non-signature option, especially for players who do not own every signature.
The fair test uses the same fight, team, and rotation. If the signature wins clearly, use it. If the gap is small and Fluff can move between characters, flexibility has account value.
A lower-rarity Arc can temporarily win if it is already upgraded or fits the rotation more naturally. Compare realistic investment levels rather than theoretical max values.
Fluff becomes more attractive when you can upgrade it enough to overtake temporary options and when the holder uses the buff window naturally.
Another reward may solve support, utility, or survivability. If your team is failing for those reasons, a personal damage Arc may not fix the run.
Choose Fluff when Solid damage is the bottleneck, not simply because it is an S-Rank option.
Use this section to test whether the 10-second ATK window is being used well.
A good Fluff of Fearlessness rotation casts Ultimate before the holder's main damage sequence. The character should stay active and land important hits while the ATK buff is still running.
This is the ideal setup for Hotori, Jiuyuan, Zero, or any future Solid damage dealer that continues attacking after Ultimate.
The window is wasted when the character casts Ultimate and then swaps away, waits through setup, or spends most of the 10 seconds repositioning. In that case, the Arc can look strong in a table but feel weak in practice.
If this happens often, compare a different Arc before spending level 80 materials.
Ask three questions: does the holder deal damage after Ultimate, is the current Arc weaker, and can you afford the upgrade? If all three answers are yes, Fluff is a strong candidate.
If one answer is no, treat the Arc as a soft pick. If two or more are no, wait or skip.