What is a personality trait?
A personality is a single letter shown on the individual panel next to the species name. It is rolled when the individual is created, it never changes on its own, and it applies a flat percentage to one or two stats. It is not a skill, it is not a passive you can toggle, and it does not level up with the creature.
That is the whole system. There is no synergy grid, no hidden pair bonus, and no "personality growth" stage. The reason players care is that the bonus is permanent and free, which makes it the cheapest stat you will ever own, and the reason players get confused is that four evolution lines treat the letter as a key rather than a bonus.
Version-tested The eight letters and their percentages are visible in the client and corroborated by several independent community tables. No official page prints them as a single list, so treat the numbers as build-verified rather than press-release official.
All eight letters and their bonuses
| Letter | Name | Bonus | Who it suits |
|---|---|---|---|
| E | Energetic | ATK +2%, BREAK +2% | Hybrid damage and break units; also a Piopiota gate |
| I | Instinctive | REGEN +4% | Sustain units and off-healers |
| S | Practical | Damage +4% | Any DPS; the safest generic roll |
| N | Nimble | Crit rate +5% | Crit-stacking builds and fast attackers |
| T | Tenacious | Physical DEF +6% | Frontline tanks; also a Geoclaw gate |
| F | Faithful | Magical DEF +6% | Units that eat elemental damage; also a Melloblum gate |
| J | Judicious | HP +4% | Shield units and anyone with Panpanta-style scaling |
| P | Playful | Damage reduction +4% | Long fights; also a Piopiota gate |
Two of these are deliberately small: E spreads its 2 percent across two stats instead of putting 4 percent on one. That is not a bug. A hybrid unit that needs both ATK and BREAK gains more from two 2 percent lines than from a single 4 percent line, but a pure DPS loses value compared to S.
Does it stack with Potential and held items?
Yes. Personality, innate Potential, Capability Awakening and the single held item are four separate layers, and all four apply to the same final stat. The game does not publish whether those percentages add or multiply, and no community test has separated the layers cleanly enough to settle it. What is settled is that a personality is never wasted: it always applies, on top of everything else.
Practically, this means you should read a personality as a tiebreaker, not as a build. Two individuals of the same species and the same Potential grade, one S and one T, are within a few percent of each other on offense. The personality only becomes decisive when everything else is equal, or when it is the key to an evolution gate.
Not published The add-versus-multiply question is open. Do not trust a calculator that quietly assumes one of them.
How do you change a personality?
A Psyche Fruit rerolls the letter on an existing individual. Nothing else changes: level, Resonance Stage, Star Rank, Potential, skills and form stay exactly where they were. That makes it a cheap and safe operation compared with a Potential reset, and it is the correct fix when you finally decide a unit should be a tank rather than a bruiser.
Two things do not reroll a personality, and both catch players out:
- Inheritance moves a training package between two individuals of the same family. It does not move personality. The recipient keeps the letter it was born with, even if the donor was a great S roll.
- A Potential reset clears training investment and returns materials. It does not touch the innate roll, the personality or the species-level trait.
A Dispatch egg generates a brand-new individual, so its personality is rolled fresh at hatch. You cannot copy a parent's letter into an egg. For the full list of what does and does not transfer, see the Inheritance and breeding page.
Which lines need a specific trait?
Four published gate rules turn the personality from a bonus into a requirement. If the letter is wrong, the evolution simply will not offer itself, no matter what materials you are holding.
| Line | Required personality | What happens if you ignore it |
|---|---|---|
| Geoclaw | T (Tenacious) | No evolution prompt. A DPS Geoclaw will never reach the branch. |
| Melloblum | F (Faithful) | No evolution prompt. Physical-defense Melloblum is a dead end. |
| Panpanta | I (Instinctive) and J (Judicious) | Needs both letters on the same individual; inheriting one is not enough. |
| Piopiota | E (Energetic) and P (Playful) | Needs both letters on the same individual. |
Panpanta and Piopiota are the expensive ones because they want two letters at once. If you are collecting towards either, check the panel before you spend anything on the individual, and budget a Psyche Fruit for the second letter. Rerolling a personality is cheap; rebuilding a wrongly evolved unit is not.
Community-verified The gate table is consistent across multiple community sources and matches reported evolution failures. It is not printed as a table on any official page.
Which trait fits each role?
The five combat roles do not map one-to-one onto the eight letters, so use this as a default and then adjust for the kit.
| Role | Best default | Reasonable alternatives | Avoid |
|---|---|---|---|
| DPS | S (Practical) | N for crit builds, E for ATK/BREAK splits | F and T on a glass cannon |
| BREAK | E (Energetic) | S if the kit scales on damage rather than break value | I and J |
| Support | J (Judicious) | F if the support eats magic, P for long fights | N on a unit that never attacks |
| REGEN | I (Instinctive) | J for survivability, P for damage reduction | S and N |
| Heal | J (Judicious) | I when healing scales off REGEN | T and N |
"Avoid" here means "does nothing useful for that job", not "invalid". A Nimble healer still heals; it just spends a slot on a stat the kit never uses. The team building page covers the role shell itself, and the tier list ranks species rather than traits.
Is Clingy real?
No. "Clingy" shows up in a handful of community lists and one translated wiki page, usually with a vague "bonding" effect and no percentage. There is no such letter in the current build, no Psyche Fruit outcome that produces it, and no panel string for it. The eight-letter list above is the complete set.
The likely origin is a machine translation of a flavor line about affinity, not a stat trait. Treat any guide that lists nine personalities as out of date, and check the letter on your own individual panel before you plan around it.
Personality at the home base
Personality also shows up outside combat. Each processing facility in the Homeland has one preferred letter, and a worker that matches it processes roughly 20 percent faster. That is speed, not yield: the same inputs produce the same outputs, they just finish sooner.
Community-recorded The 20 percent figure and the per-station letter mapping come from community testing, not from an official tooltip. Check the station panel for the preferred letter before you assign a worker, and see the Homeland and RV page for the full worker loop.
One practical consequence: do not reroll a personality purely for combat if the individual is your best worker for a station that wants that letter. A single Psyche Fruit can solve one problem and create another.