Crusader's Fist (Combat)
You pour divine energy into the enemy you strike.
Prerequisites: Lay on hands class feature or touch of corruption class feature, Improved Unarmed Strike, base attack bonus +6.
Benefit: When you attack with an unarmed strike and hit a creature that you can harm with your lay on hands or touch of corruption feature, you can use a swift action to expend a daily use of that feature to deal its normal damage as if you had hit with the feature's normal touch attack. This extra damage is not multiplied if you scored a critical hit
Why do you need to this Feat? You could alway take touch attack and use to hit real AC to do both the unarmed strike damage and the touch take effect. Is it to do this and make full attack with one attack having the touch attack effect as kicker?