Can be made into any weapon.

If a weapon has the heavy property, it no longer gives small creatures disadvantage on attack rolls.
If a weapon does not have the heavy property, it gains the light property.
If a weapon has the light property, it gains the finesse property.
If a weapon has the thrown or range property, its short range becomes half its long range.

As a bonus action, you can unleash the winds of your weapon to launch yourself in a straight line 30 feet in any direction. This movement does not provoke opportunity attacks. The weapon can’t be used this way again until you complete a short rest or long rest.