Boneblade, a holy knife, was initially available by opening the 2018 Halloween Box during Halloween Event 2018. You can now trade it as the event is over.
Boneblade Value & Characteristics
|Ways to Obtain|
|Value||60 Seers (MM2 Values)|
Boneblade has a grey blade with nine visible marks, three near the top, four at the bottom, and two at the bottom left. There are also two triangle bits chipped off the blade. It has a black bottom handle and a back handle. The grip is dark red and black.