User blog comment:1caiser/SAO Crystal: Stoneware Clay/@comment-33019320-20130920054615/@comment-3250527-20130920055119

I do not know what you intend to do with that hammer, but despite that, my product has already been safeguarded as an «Immortal Object».

Otherwise, in Project Alicization terms, my handmade crystal has a higher Priority Class than your mass-manufactured hammer.

Or, if you wish to go into reality, allow me to get my brother's katanas. Carbon-steel is a force to be reckoned with. :D

Or, chances are you're going to do something else with that hammer. Like make a wooden sword.