Mind Blade is a Halo Knight alternate class feature.
Mind Blade loses the Idealized Weapon class feature and all improvements to it.
The Mind Blade gets Form Mind Blade as a bonus feat at 1st level.
At 2nd level and every two levels after that, (2,4,6, etc.) it gains a free mind blade feat.
Mind blade Feats Link- http://dsp-d20-srd.wikidot.com/mind-blade-feats