I am not a server dev, i'm a player. I can only edit client files. The server owner made a custom item with the ID number 10899. I want that item (Which is a shield) To LOOK like a soul separator. The textures of which EXIST within the game already as weapon. I want those textures on my Shield Item from the client side, as i understand, this can be done with the weapongrp.dat
Have somebody translate this for you, its very clear in English.