OGC:Multiple Stunning Strike (3.5e Feat)
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Multiple Stunning Strike [Fighter Bonus, Class, Tactical, Melee Attack]
You can stun your enemies more frequently.
Benefit: You may attempt a stunning attack once per day for every three levels you have attained, and no more than once per round.
Special: In addition to the normal feat slot, a fighter must spend 500 XP and 3 weeks in training in order to learn this feat. A fighter who spends 1,500 XP and 8 weeks in training, may attempt a stunning attack once per day for every two levels, and still no more than once per round.