The melee weapon in the main hand is thrown at an enemy 20 to 120 feet away. The weapon takes on a etherial form and passes through obstacles on it's way to the target. When it contacts, and the weapon is not Piercing, roll 2d8 and take highest value. If it is Piercing, roll 1d8. This is roll for the contact point of the weapon. I.E. if you throw a Maul and got the following rolls: 4, 7 then you take the 7, add and substitute it for the roll before bonuses on the original weapons damage. If you get an 8 on a non Piercing weapon, use the higher of that roll and the original weapons rolls before bonuses. If you threw a rapier and rolled anything other than a 8 you deal 0 physical damage. But if you do get an 8, double the damage after bonuses dealt to the creature by this attack.
The thrown weapon is destroyed.
On MAGICAL weapons: roll 1d10. Only if 9, 10, or 1, activate physical damage rolls as normal, but the weapon sends forward a pure energy version of itself to pierce half the distance thrown with full damage as was prerolled and falls to the ground as a non magical weapon in front of the first enemy hit.