Versatile Weapon Master

You have mastered the art of wielding weapons one handed and two handed alike:

While welding a weapon with the versatile property you can use your reaction to add your proficiency bonus to your AC potentially causing the attack to miss.

Before making an attack with a weapon with the versatile property you can take a - 2 to hit and a +5 to damage. 

If you hit with a melee weapon attack on your turn you can use your bonus action to make a secondary attack with the pommel/head or haft of the weapon, this attack deals 1D4 bludgeoning damage + Strength/Dexterity Modifier but cannot benefit from the +5 to damage stated above.