Bonus Breath
(Savage Species, page 31, DnD 3.0)
[Monster]
You can use your breath weapon one more time per day than you normally could.
Prerequisite
Breath weapon with limited uses per day, Extend Spell or Extend Spell-Like Ability
Benefit
You can breathe one additional time per day. The interval you must wait between breaths is 1 hour.
Special
You can gain this feat multiple times. Each time you take it, you can breathe one additional time per day.