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Version 0.29: This article may not be up to date for the latest stable release of Crawl.
Slow.png Slow
Level 1
School1 Hexes
Source(s) Book of Debilitation
Casting noise 2
Spell noise 0
Power Cap 25
Range LOS
Flags Wl check, Dir or target, Needs tracer
Slows the actions of a creature.

Slow is a status effect and a level 1 Hexes spell that makes the target slower.


If the target fails a willpower check, they will be slowed. At higher spell power, the target is slowed for a longer period of time.

The Arcane Marksman background starts with this spell memorized, and Hedge Wizards may learn it from turn one.


Slowed creatures take 50% longer for movement and all other actions. Haste and Slow will cancel each other out, without rounding error. This can seriously reduce the damage output of affected creatures, and it is much easier to escape slowed pursurers (but much harder to escape when slowed).

Formicids are completely immune to the effect due to their stasis.


Other than the spell, a piece from Xom's chessboard, clouds of miasma, curare-tipped darts, Metabolic Englaciation, or Leda's Liquefaction (on monsters) will all have the same "slow" effect, but some of them will check other parameters or resistances instead of willpower.

Monster Version

The monster version of this spell functions similarly to the player version.

The following enemies cast Slow:

The following enemies may be able to cast Slow, depending on their spell set:


  • Prior to 0.28, the Slow spell was a level 2 Hexes spell, with a power cap of 200.
  • Prior to 0.18, an amulet of stasis could protect you from Slow.
  • In 0.17, Slow was removed from the Book of Hinderance.
  • In 0.10, the spell received a small power boost.
  • Prior to 0.8, slowing made every action take twice as long.