Tenshi Nova wrote:And there's no proof that altering the shape would compromise it's integrity :#
Have you ever worked with metal before out side of Minecraft or runescape? No, you haven't. Let me explain briefly.
Each time you melt down metal, clean out the impurities, etc, the metal becomes stronger, but also more brittle. Samurai Swords attempt to bypass this flaw by folding them on themselves a number of times. That strengthens them and prevents them from breaking, but the metal is still brittle. Taking a samurai sword and melting it down would destroy that framework of support and you would be left with brittle metal. No other sword design employs that craft to their swords. Rapiers, broad swords, short swords, and most of all the other styles forge the sword through placing metals together and hammering them into one, hammering the shape out, or using a mold.
If you take a samurai sword and melt it down, you compromise the strength of the metal because that framework that gives it strength is no longer there, thus you are compromising its integrity.
Now with Jack's sword, which was mystically created and enchanted by the Gods and the righteousness from the Samuairi Lord's heart, might not even be able to be melted down. Being protected by magic and stuff. But supposing that you could melt it down, its a very good chance that you will loose the enchantments it has for fighting evil. For one, the sword, not the metal is enchanted. The other reason is the habit of any magical artifact being cracked or damaged significantly (melting it down would count) loose their magical ability as they are no longer able to hold the power.