It was destroyed by Colonel Shuon of the Navy Headquarters, who had the ability to use the "Rusty Fruit".

After Usopp and Robin left in the Isle of Justice incident chapter, Sauron and Luffy were defeated and kicked off by Rob Lucci? . In order to retrieve Robin, Sauron and Luffy take the Upper Sea Train to the government's key location of "Justice Island".

In a later battle plan to rescue Robin, Sauron awakened the "Ghost Breath Nine Blade Stream - Asura" and defeated CP9's first swordsman, Kaku. Due to the "Demon Slaying Order", the Navy also came to the Justice Island, Sauron encountered the Navy Captain Shuon in the process of breaking out, and without knowing his ability, he grabbed the blade of the Snow Walking Blade, and was instantly rusted by the "Rusty Rusty Fruit".

Expanded:

Anime TV Episode 309 (Pour Your Will Into Your Fists! Luffy puts his best foot forward!)

Synopsis: As the Navy sends 200 elite troops of the rank of Major and above to attack Sauron and the others, Sauron, Usopp, Nami, and Robin are caught in the middle of a bitter battle, while Luffy continues to confront Luigi, who has already been knocked out by Luigi's six strongest moves - the Six King's Guns - but after hearing Usopp's desperate calls, Luffy finally pulls himself together to once again defeat Rob Luigi, who is the most powerful of all. Once again, he was going to knock Rob Lucci down.

While Luffy fought to take down Luchi with everyone's encouragement, he was unable to move because his power had run out. It was clear that the Navy had given the order to shell Luffy to death, but, right in the middle of everyone's voices calling out for Luffy, Usopp vaguely heard a familiar voice, that of Merry. Telling everyone to jump into the sea, the entire party jumped into the sea in droves...