Hey there, i wanna add some swords, but theres one prob, its all divided into clases, ex. Katanas, daggers, Axes etc.

And i dont wanna add a material for every single weapon. Is there another way i could set their durability and damage that isnt throught a Material, kinda like Tinker Construct Swords/tools

I think your best bet may be through the itemstack's NBT tag, have the item load it's durability/max damage from an NBT integer value and keep a static hashmap somewhere for what material to damage values you want to set.