Fly Like a Butterfly

Through long days of training, study, or both, you have developed a unique fighting system that greatly utilizes your agility, speed, and perceptiveness. The combat techniques you have developed include a unique movement style that resembles a dance, making you harder to hit and pin down. Your mindfulness of movement during combat has taught you how to adapt to your opponents fighting style, making you even harder to face on the battlefield. You gain the following benefits:

• While you are wearing no armor, your AC equals 8 + your proficiency bonus + your Dexterity modifier. You can use a shield and still gain this benefit.
• You can try to discern the combat style of an enemy you can see, increasing your evasive prowess against them. As an action or a bonus action, you can make a Investigation or Insight check(your choice) contested by the enemies Deception check. If you succeed, opportunity attacks against you made by that enemy have disadvantage. Additionally, for one minute you can use your reaction to impose disadvantage on one of weapon attacks made against you by that enemy.
  You cannot benefit from this ability if you cannot see the enemy. You cannot use this ability more than once per minute against the same creature.