Every drop first rolls a rarity, then picks a random item that is that rarity — so an item's rarity is fixed; only its affix magnitudes vary from drop to drop. Luck is magic-find: each point raises the weight of the higher rarities, so more Luck pushes drops upward (it never lowers your Common floor, it just adds pull toward the top).
| Luck | Common | Uncommon | Rare | Legendary |
|---|---|---|---|---|
| 0 | 46.5% | 37.2% | 14.0% | 2.3% |
| 25 | 42.7% | 38.4% | 16.0% | 2.9% |
| 50 | 39.4% | 39.4% | 17.7% | 3.4% |
| 100 | 34.2% | 41.0% | 20.5% | 4.3% |
| 200 | 27.0% | 43.2% | 24.3% | 5.4% |
| 300 | 22.3% | 44.7% | 26.8% | 6.1% |
An item rolls a few affixes from its pool — Common 1, Uncommon 2, Rare 3, Legendary 4. Each card explains whether it includes every listed bonus or randomly selects bonuses from a larger list. Some items combine guaranteed bonuses with random bonuses. The ranges show how the values can vary between drops.
Weapons work differently: a rolled blade adds a flat number to every basic F swing (Common 5–20 · Uncommon 20–50 · Rare 40–120 · Legendary 120–200 on a katana, scaled per weapon type so it is the same share of a swing on a tanto or a zanbato), plus either one signature (a swing mechanic whose strength also climbs with rarity — the same signature on a Legendary is about twice a Common's) or an element (extra elemental damage and a status, at the cost of max chakra, only while you know that nature). The flat is worth proportionally more to a lower-level fighter, and the whole package tops out around 140% of a max-stat plain swing on a Legendary — it is a long-tail chase, never a stat replacement. Item damage lands after your own multipliers, never inside them.
Base weights: Common 500 / Uncommon 400 / Rare 150 / Legendary 25. Per Luck point, Uncommon +0.5%, Rare +1.0%, Legendary +1.5% of its own base weight.
