One's Dexterity stat determines the amount of damage one inflicts while Wrestling, or fighting with your hands free. It also directly determines one's stamina in the same way Intelligence determines mana and Strength determines hit points. The higher one's Dexterity, the more damage they inflict when Wrestling. For robe classes that rely on Wrestling to do physical damage, Dexterity can be a useful skill. Dexterity may also improve the strength of Critical Hits, although this is unconfirmed.
Clerics and Fighters have the overall highest amount of Dexterity, followed by Rogues, then Wizards and Rangers, and Druids have the least amount of Dexterity.
The Agility Potion and the Agility spell temporarily increase one's Dexterity.