I now have added 4part katars to my collection.
I have
4part mace 2.0
4part zhen 2.0
4part dagger 2.0
4part sword 2.0
4part dual swords 3.0
4part katars 1.0
Epic Zhen
All these upgrades in the possession of 1 player. Makes you wonder huh?
Do you think that this game is balanced by the lack of selling new upgrades. When one player can have so many? I will go out on a limb to say that I probably control 1/100th of the upgrades in this game.