Blind-Fight

The character is skilled at attacking opponents that she cannot clearly perceive.
Benefit: In mêlée combat, every time the character misses because of concealment, the character can reroll the miss chance roll one time to see if the character actually hits.
An invisible attacker gets no advantages related to hitting the character in mêlée. That is, she doesn’t lose her Dexterity bonus to Defence, and the attacker doesn’t gain the usual +2 bonus for being invisible. The invisible attacker’s bonuses do still apply for ranged attacks, however.
The character does not need to make Acrobatics skill checks to move at full speed while blinded.
Normal: Regular attack roll modifiers apply for invisible attacks trying to hit the character apply, and the character loses her Dexterity bonus to Defence. The speed reduction for darkness and poor visibility applies.