Augment of Elemental Control

You have spent a long time of training and can control elemental damage to an extreme degree.

• You can manifest a visual aura based on one of the elemental of your choice. To those within 5 ft of you the fire aura feels a bit warmer, cold aura feels cooler, acid aura smells metallic, thunder aura sounds crackling and can be heard from up to 100 ft away, and lightning aura has sparks that jump around you and feel static effect.  
• If you can change the damage type of an attack to fire, cold, acid, thunder, or lightning you may change the damage type of your unarmed attacks to that element. (This would not add the additional 1d6 from the elemental archer build)
• When you deal fire, cold, acid, thunder, or lightning damage you can reduce the damage you do by an amount chosen by you after you hit up to reducing the damage to 0. You can control how much the target is aware of the damage potential. (You can punch someone and make them know how much damage they would have taken)