every class — slow heavy weapons gain the most relative speed
Swiftness 5–12% plays best here ; secondary rolls can add Damage or Crit Chance.
Increases attack speed by 5–12%.
| Weapon | Class | True speed | DPS no rune | DPS +Swift Sigil 8.5% | Gain |
|---|---|---|---|---|---|
| Pocket Shiv | Dagger | 0.62s | 65 | 70 | +8.5% |
| Frostpetal Blade | Katana | 0.94s | 170 | 185 | +8.5% |
| Sakura Worldsplitter | Colossal Sword | 1.755s | 262 | 284 | +8.5% |
Fixed recipe: 10x multiplier, quality 100, no trait ores. Fastest dagger vs mid katana vs heaviest colossal — speed runes shrink the swing denominator, which is worth the most on slow weapons.
Swiftness 5–12% plays best here ; secondary rolls can add Damage or Crit Chance.
Swiftness 5–12% plays best here ; secondary rolls can add Damage or Crit Chance.
Increases attack speed by 5–12%. It sockets into weapons and rolls 5–12% on the Swiftness primary stat.
At the midpoint roll (8.5%), Swift Sigil adds up to 8.5% true DPS on a 10x forge — biggest gains land on Pocket Shiv. See the sample table for per-weapon math.
Socket it on every class — slow heavy weapons gain the most relative speed — proc and DoT runes scale with hit rate, so faster weapons squeeze more out of every roll.
Swift Sigil is a uncommon rune (C tier). Secondary rolls can add Damage, Crit Chance, Swiftness — chase a high primary roll first, secondaries are gravy.