Reckless (3.5e Trait)
From D&D Wiki
You have total chaos once battle arises and care little what happens to yourself.
Benefit: You gain a +2 dodge bonus to AC against attacks of opportunity.
Drawback: You take a -2 penalty to attack rolls and spell DCs against enemies that are not the highest threat. The highest threat enemy is the creature you can see with the highest HD.
Roleplaying Ideas: You love the thrill of battle and what it can be like if you are always taking on the most challenging fights. You will always strive to ignore the strategies put into place for the party if there is a foe that will be worth the fight.