Illegal Weapon Instructions
Illegal Weapon Instructions is a vital material in crafting the six dark and light themed weapons.

It is crafted from:

  • 1 Cobalt Bar
  • 1 Mythril Bar
  • 1 Adamantite Bar
  • 5 Books
  • 30 Silk
  • 2 Black Dye

Illegal Weapon Instructions on a shelf.

This "book" can be found on the shelves of the Hellcastle as well as crafted, so be on the lookout for these in that biome.

In the source mod, they are a 100% drop from Juggernauts.


If you mine the Wooden Platform underneath the instructions, it'll stay there and levitate. This bug will be fixed soon.