Proficiency Weapons is a system that, like Unique Items, allows you to obtain unique weapons.
Weapons gain experience points during hunts. To gain experience, a weapon must be equipped in a weapon slot.
Proficiency provide passives attribute that boost damage in some way.
Prificiency weapon can roll up to 6 slots but not less then 3 slots
Each slot can have up to 3 bonuses to choose from(first 3 slots guarantee 3 bonuses per slot)
The selected bonus cannot be changed.