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
- Crafting station: Resistant Work Bench
- You get one
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.