Every weapon deals reduced damage against some monster sizes. Weapon Perfection removes that penalty outright — for you and your party.
Before your status ATK is added, the weapon's own damage is scaled by how well that weapon class suits the target's size:
| Weapon | Small | Medium | Large |
|---|---|---|---|
| Dagger | 100% | 100% | 100% |
| One-handed sword | 75% | 100% | 75% |
| Two-handed sword | 75% | 75% | 100% |
| Spear (either hand) | 75% | 75% | 100% |
| Axe | 50% | 75% | 100% |
| Mace | 75% | 100% | 100% |
| Knuckle | 100% | 75% | 50% |
| Katar | 75% | 100% | 75% |
| Bow | 100% | 100% | 75% |
| Staff | 100% | 100% | 100% |
A few things fall out of that table. Daggers and staves are never penalised. Spears and two-handed swords share exactly the same profile, so size is not what separates them. Axes are the most lopsided melee weapon — full damage against Large, half against Small — and knuckles are the mirror image, which is awkward for a Monk, since Large is where the big targets live.
The penalty applies to the weapon portion only, not to your status ATK, so it costs weapon-heavy builds more than STR-heavy ones.
The Blacksmith buff Weapon Perfection nullifies the size penalty completely: every weapon deals 100% to every size for its duration. On Payon Stories party members receive the effect too, so one Blacksmith removes it for the group. Its rank only sets the duration — the effect is the same at Lv1 and Lv5.
How much that is worth depends entirely on what you swing and at what. An axe against a Small target recovers half its weapon ATK; a knuckle against a Large target likewise. A two-hander against Medium — the size of most monsters and of players — recovers a quarter. A dagger gains nothing, because it never lost anything.
It removes the weapon-versus-size damage penalty entirely, so every weapon deals full damage to every monster size. On Payon Stories party members receive the effect as well as the caster.
No, only the weapon's own damage. Your status ATK from STR, DEX and LUK is added after the size scaling, so builds that lean on stats rather than weapon ATK feel it less.
No. Rank only extends the duration. The penalty is fully removed at every rank.
The calculator prints every step of this with your stats, gear and target, so you can check the numbers rather than take them on trust.
Builds this affects most: Blacksmith — Battle Smith (AGI) · Knight — Hybrid.
Payon Stories wiki — Weapon Perfection ↗ · Formulas as implemented in the calculator's engine, which is open about what it cannot yet model.
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