BLIND-FIGHT [Combat, Martial]

     You know how to fight in melee without being able to see your foes.
Benefit: In melee, every time you miss because of concealment, you can re-roll your miss chance percentile roll one time to see if you actually hit (see Table 8–10: Concealment, page 133 of the Player's Handbook).  An invisible attacker gets no bonus to hit you in melee.  That is, you don’t lose your positive Dexterity bonus to Armor Class, and the
attacker doesn’t get the usual +2 bonus (see Table 8–8: Attack Roll Modifiers, page 132 of the Player's Handbook). The invisible attacker’s bonuses do still apply for ranged attacks, however.

     You suffer only half the usual penalty to speed for being unable to see.  Darkness and poor visibility in general reduces your speed to three-quarters of normal, instead of one-half (see Table 9–4: Hampered Movement, page 143 of the Player's Handbook).
Normal: Regular attack roll modifiers for invisible attackers trying to hit you (see Table 8–8: Attack Roll Modifiers, page 132 of the Player's Handbook) apply, as does the speed reduction for darkness and poor visibility (see Table 9–4: Hampered Movement, page 143).
Special: The Blind-Fight feat is of no use against a character who is the subject of a blink spell (see the spell description, page 180 of the Player's Handbook, for details).