: They were crafted using crucible steel , a high-purity metal with a carbon content so high that the technology to create it wasn't thought to exist in Europe until the Industrial Revolution.
: Players use the term for "illegal" legendary items like the Soulcatcher Blade , which summons hostile mobs to fight for the user, or "God Swords" with impossible enchantment levels (e.g., Sharpness 1000). The Sword That Shouldn't Exist
: Each authentic blade is marked with the name "+VLFBERHT+" in a specific arrangement of crosses, which functioned like a high-end brand name in the 9th to 11th centuries. Other "Swords That Shouldn't Exist" : They were crafted using crucible steel ,
The phrase is also popular in modern gaming and fiction to describe "illegal" or overpowered weapons: Other "Swords That Shouldn't Exist" The phrase is
: On collector forums like the Nihonto Message Board , it is often used for modern Chinese fakes that mimic Japanese signatures but lack the correct historical construction.