Dexterity measures agility, reflexes, and balance. This ability is the most important one for rogues, but it’s also useful for characters who wear light or medium armor or no armor at all. This ability is vital for characters seeking to excel with ranged weapons, such as the bow or sling.
A character with a Dexterity score of 0 is incapable of moving, their muscles locked up, becoming frozen and rigid, and is Paralyzed.