Syntax: Automatic
Prerequisites: Level 30, proficient with desired weapon type
With this feat you know how to use your weapon to hit where it hurts the
most. This feat doubles the threat range for critical hits.
* The trainer of this feat must also train the weapon that you wish to focus
on.
* To train this feat, use the format train 'improved critical' <weapon type>.
The weapon type must be specified in all lowercase letters
* This feat does not stack with other effects that increase a weapon's threat
range, such as keen weapons.