Hi there! I'm one of you guys that wants to be enlightened by this part of the game .. In my case, it's my Inner Gates .. I already heard much about this Nin Pen and Tai Pen being useless and should be not used while the others says that it helps to increase the damage .. I'm using my Inner Gates depends on the role of the ninja, if the ninja is the main offense of the team then the "Damage-Focused Runes(Atk/Nin/AtkPen/NinPen/Crit/Inj/Ini" will be equipped with him, then defense ninjas gets the "Defensive Runes(Def/Res/DmgReduc/Life.......) .. And now im starting to wonder about the Ninja Tools too, as i am planning to reforge some of my stuff .. I hope someone answers this thread and bring answers to us my fellow shinobi ..