Shape Breath

 
Prerequisite(s): Con 13+, Breath Weapon, size Small or larger.
 
Benefit: If you have a line-shaped breath weapon, you can opt to shape it into a cone. Likewise, if you have a coneshaped breath weapon, you can shape it into a line. When you use this feat, add +1 to the number of rounds you must wait before using your breath weapon again.
 
Source: Draconomicon