Curse of Sloth

 
Prerequisite(s): Curse Ability, any other hexblade feat
 
Benefit: When using your hexblade's curse ability, you can choose to cut your victim's movement by one quarter (round down). This affects all forms of movement. A greater curse cuts movement by one half, a dire curse cuts movement by 3/4 (5' minimum).
 
Source: Dragon Magazine #339