Kurogane Insight

You can completely see through your opponents by grasping their fighting styles using your incredible insight to grasp their personalities and tendencies. Using this, you can figure out their thought process and predict their moves in advance. It's as though you can see everything about the person in question. You are granted the following abilities:

Perfect Vision: When a melee or spell attack is made against you, you may use your reaction to give the attacker disadvantage on the attack.

Blade Steal: When a melee attack is made against you, you may use your reaction to give yourself advantage on the next melee attack you make against creatures who attacked you this turn. 

The number of times you can use these abilities is equal to your Proficiency Bonus. Once they are used up, the amount of uses resets after completing a long rest.