[Shadow Stranger]

Or you can just use the method outlined in my post "Item Editor", this method requires that the item can be bought and sold. Here is the code, it is all hexadecimal, just insert into a save game inventory slot: 03 01 00 00 04 00 00 00 00 00 41 72 64 69 62 72 65 6E 27 73 20 4B 65 65 70 73 61 6B 65 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 00 00 14 00 00 00 00 00 14 00 00 00 00 00 01 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Edit: this is the code for Ardibren's Keepsake, you don't need to inherit it from game to game, you only need a hexadecimal editor.