Thieves are able to focus their mind on a particular type of attack.
This mindset allows them to enhance their reflexes against the chosen
attack type.
These superior reflexes are not great enough that the thief will ever
avoid the damage; however, the superb reflexes allow the thief to be
slightly more prepared for the attack.
Superb reflexes increases the thief's resistance to the chosen attack
type. A thief may change their resistance type at any time.
Typing 'reflex' without an argument will display all the allowed
attack types that a thief is allowed to avoid.
See also: help resistances