Terrible Weapons Master

You have no idea how to use a weapon correctly. But you're really good at it. 

You don't know which end of the sword to hold, how to swing a hammer right, or which side of the arrow faces forward. Your form is terrible, your stance is awful, and every time you fight you look like you have no clue what you're doing. However, through thousands of hours of training, you have honed your abysmal technique to a razor's edge. Your unconventional fighting style grants you the following benefits:

• When you make an attack with a simple or martial weapon you are proficient with, you must change the damage type to any other kind of physical damage (eg. dealing slashing or piercing damage with a warhammer instead of bludgeoning).
• Being within 5 feet of a hostile creature doesn’t impose disadvantage on your ranged attack rolls.
• You learn one maneuver of your choice from among those available to the Battle Master archetype in the fighter class. If a maneuver you use requires your target to make a saving throw to resist the maneuver's effects, the saving throw DC equals 8 + your proficiency bonus + your Strength or Dexterity modifier (your choice).
• You gain one superiority die, which is a d6 (this die is added to any superiority dice you have from another source). This die is used to fuel your maneuvers. A superiority die is expended when you use it. You regain your expended superiority dice when you finish a short or long rest.