I don't think he can hack that. There's no Packets that make your Scrolls work. But I do know that there's a chance that he got those scrolls in illegal way. EDIT: You caught him duping... What if there's a chance that he duped his claw every time it disappeared? (Because of 30%.. I really didn't believe him when he said he used two 10%) That's pretty clever, don't you think?
He packet edited items which he would sell for mesos and then buy white scrolls (inflating the price). He then could of duped white scrolls, so yeah.. illegit and basically hacking.
I didn't said that he didn't hacked. I just suggested a possible way that he could have done this. I also didn't know that you can packet edit items... I thought that you can only get items by using their packets. Let's don't get to deep on this because this info doesn't belong in here xD