You know how to fight in melee without being able to see your foes.
Prerequisite: No special prerequisite required.
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 Concealment, Player's Handbook 3.5, Page 152).
An invisible attacker gets no advantages related to hitting you in melee. That is, you do not lose your DEX bonus to AC, and the attacker does not get the usual +2 bonus for being invisible (See Table 8-5: Attack Roll Modifiers and Table 8-6: Armour class Modifiers, Player's Handbook 3.5, Page 151). The invisible attacker's bonuses do still apply however for ranged attacks, however.
You take only half the usual penalty to speed for being unable to see. Darkness and poor visibility in general reduces your speed to 75% normal, instead of one-half (See Table 9-4: Hampered Movement, Player's Handbook 3.5, Page 163).
Normal: regular attack roll modifiers for invisible attackers trying to hit you (See Table 8-5: Attack Roll Modifiers, Player's Handbook 3.5, Page 151) apply, and you lose your DEX bonus to AC. The speed reduction for darkness and poor visibility (See Table 9-4: Hampered Movement, Player's Handbook 3.5, Page 163) also applies.
Special: The Blind-Fight feat is of no use against a character who is the subject of a Blink spell. A fighter may select Blind-Fight as one of their fighter bonus feats.
Based on the entry in Player's Handbook 3.5 Page 89.