Race vs Clan vs Trait vs Aura — what's the difference?
Sailor Piece has four permanent modifier systems that every player interacts with: Clans, Races, Traits, and Auras. They look similar at a glance — each gives you percentage buffs on a fixed slot — but they differ in acquisition, scaling ceiling, and the specific stats they prioritise. This guide puts the four side-by-side and explains exactly when each matters.
9 minute read · Updated April 22, 2026
The 30-second summary
- Clan — signature passive ability + balanced offensive stats + utility (luck, drop rate). Rolled from Clan Reroll. Current top pick: Monarch.
- Race — highest raw damage ceiling + HP + a mobility or survival quirk. Rolled from Race Reroll. Current top pick: Shadowborn or Slime.
- Trait — pure stat stick: damage, defense, and cooldown reduction. No passive ability. Rolled from Trait Reroll. Current top pick: Celestial or Secret Trait 3.
- Aura — flat damage bonus + visual effect. Rolled from Aura Crate. Current top pick: Hellfire, Winged Aura, or Fallen Aura.
All four stack additively. You can and should have all four slots filled simultaneously — they don't compete. The question isn't "which one?" but "which one do I reroll first, given I have limited reroll items?"
What each system does
Clans — the signature passive slot
Clans are the first major customisation you unlock (around Level 50). Every clan provides a package of percentage bonuses — damage, HP, sword damage, luck — and most top-tier clans also come with a named passive ability that triggers on a specific game event. Voldigoat's Goat Toughness passive reduces incoming damage by 5% always. Monarch's Royal Fortune has a 20% chance to drop an extra item on enemy kill, which compounds with any luck or drop-rate multiplier you're running.
Because the passive is what distinguishes a clan from a pure stat stick, picking a clan that matches your playstyle matters more than picking the one with the highest raw damage number. A farming build wants Monarch's drop proc; a tank build wants Voldigoat's always-on DR.
The clan pool is small — 7 entries — and rerolls aren't that rare once you're past Level 500, so landing a good one is reasonable to target within a weekend of grinding.
Races — the raw damage ceiling
Races are the second modifier, unlocked slightly later in progression. Unlike clans, races lean heavily into raw stat contribution — Mythical races like Shadowborn, Slime, and Servant regularly push +120% total offensive stats in a single slot, nearly twice what a top-tier clan contributes.
Races also often add a unique utility stat that no clan offers: Skypea grants extra jumps for map traversal, Mink adds raw speed, Fishman pushes money and EXP gain for grinding. These quality-of-life stats won't show up in a damage calc, but they substantially affect how the game feels to play at low levels.
The downside: the race pool is larger (18 entries) and Mythical rolls sit at roughly ~1%, so rerolling specifically for Slime or Shadowborn can easily consume 150–400 Race Rerolls. Plug the target into the Reroll Simulator before committing.
Traits — the highest single-slot damage boost
Traits are the third and mechanically weirdest modifier. The developers intentionally use invisible Unicode characters instead of human names on most trait cards, so the community references them by rarity + index ("Epic Trait 2", "Mythical Trait 4"). The one exception is Celestial, the named Secret-rarity trait.
What makes traits important is the size of their buffs. A single Secret-rarity trait can grant +100–120% damage, +65–100% defense, and +25–30% cooldown reduction all at once — more raw stat value than any clan or race provides. If you could only reroll one system, traits would be the right answer on pure stats-per-slot basis.
Trait Rerolls also drop at a higher rate than Clan or Race Rerolls (community consensus puts them at 2–3× the per-kill chance), so building up a trait reroll stack is the most grind-efficient path to a significant build upgrade. The full ranked table of all 24 traits lives on the Traits Hub.
Auras — the top-off damage slot
Auras are the simplest of the four. They sit in their own slot, provide a flat damage percentage and a visual effect (flames, wings, halo), and nothing more. Rates range from +5% damage on the weakest Common auras up to +15% on the Epic-tier Hellfire, Winged Aura, and Fallen Aura.
Because the ceiling is comparatively modest (+15%), auras won't make or break a build — but they're pure upside relative to whatever you had before, and Aura Crates frequently come from codes. Redeem the weekly code bundle, roll the crates, and take whatever you get.
How the four systems stack together
Damage, HP, sword damage, melee damage, luck, and drop rate all stack additively. If your clan gives +27% damage, your race gives +50% damage, your trait gives +120% damage, and your aura gives +15% damage, the game sums those to +212% and applies a single 3.12× multiplier. This is why it's more valuable to stack all four systems at moderate roll quality than to grind a Mythical in one slot while leaving the others empty.
Damage Reduction and Defense are also additive but capped at 80%. Cooldown Reduction is capped at 60%. If your Mythical trait + race + accessory combined push a capped stat over the ceiling, the overflow is wasted. The Build Calculator flags this with a yellow warning bar so you can swap one of the contributing sources for something uncapped (damage, luck, drop rate).
Which one should I reroll first?
Purely by stats-per-roll, the priority is:
- Trait — highest single-slot value, fastest reroll accumulation.
- Race — biggest raw stat ceiling after trait, slower to roll.
- Clan — smaller stats but the passive matters for farming / tank builds.
- Aura — cheapest to improve (crates are common), lowest ceiling.
Detailed reroll math with confidence thresholds is in the reroll priority guide. If you want to see what your current build looks like end-to-end, drop it into the Build Calculator and tweak from there.