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Version 0.21: This article may not be up to date for the latest stable release of Crawl.
Swiftness.png Swiftness
Level 2
School1 Air
School2 Charms
Source(s) Book of Air
Book of Burglary
Casting noise 2
Spell noise 0
Power Cap 100
Hated By Cheibriados
Flags Selfench, Utility
Calls forth winds to greatly increase the caster's movement speed. After the effect ends, the caster's movements will be sluggish for a time.

Swiftness is a level 2 Air/Charms spell which reduces your movement delay.


Once cast movement delay is reduced by 25%, making it easier to escape combat or pursue fleeing enemies. However, after the speed boost ends, your movement speed will be 50% slower for the same amount of time. For centaurs, and anyone with movement delay 7, the fluctuation is smaller: the increase only brings them to 0.6, a 16.7% bonus, while the penalty slows them by 20%.[1]

Swiftness affects formicids, despite their stasis.


  • This spell does stack with other sources of speed, such as Haste and boots of running.
  • Be aware that if you move onto water (without being airborne), your Swiftness is temporarily ineffective.
  • Spriggans cannot cast this spell unless under the effect of transmutations which restore 1.0 move speed (or slower).
  • Centaurs only receive a 1 point bonus.
  • Swiftness will stack with haste, however, resulting in fluctuations in movement speed between 0.4 and 0.6.
  • Cheibriados dislikes the use of Swiftness -- using it will incur penance.


Prior to 0.14, there was no slow down after the spell ended, but it penalized stealth and trap detection while active. It also reduced move delay by a flat 0.2 instead of giving a percentage bonus.

Prior to 0.13 this spell couldn't be cast while standing in shallow water.


  1. player.cc:2029 (0.19.0)