Talk:Improved Blindsense (3.5e Feat)
From D&D Wiki
SRD has two feats: Blind-Fight and Blindsight, 5-ft. Radius.
The prerequisite for these feats: BAB 4, Wisdom 19. The benefits: Blindsight up to 5 feet, invisible attackers gain no bonus for hitting you in melee. Halves penalty for being blind. Can reroll concealment miss chance once.
Prerequisite for Improved Blindsense (and Blindsense): Wisdom 13 The benefits: Blindsight to 60 feet, invisible creatures have no benefits at all. Negates displacement, blur, concealment.
There's a reason they have those prerequisites and those benefits. The benefits you've chosen are completely overpowered. Homebrew feats should fill in interesting gaps, not make your build overpowered.