I not sure if this idea already suggestion or planned uncraftable unique item that only drop by unique mobs / bosses each unique item have own special add on. examples -unique weapon have own special animation that none of any other weapon have. *uppercut swing style, spinning attack, unique idle animation. -give multi buff effects from 1 item. *Ninja boot give increase movement and jump height, chance of dodge - all in 1 ) -have sequence attacks. *1 have low damage, 2nd increase, then 3rd have finish heavy damage. -it can do special attacks same as unique boss' special attack. and many idea can be suggestion add to it.