Although Reaper is a smaller version, it can help you collect more resources and souls without difficulty.
It will replace the old look of your item.
How to get
Unfortunately, you cannot acquire it anymore. Formerly, people could purchase it at the Item Shop. It was active only for the Halloween event. However, it may not come back for the next update.
Reaper is considered one of the rarest pickaxes.
You can equip it in the Locker.