The Reaper Robe was added in the 1.2.1 update. It can be obtained through opening a Goodie Bag, which are dropped by monsters during Halloween.
Reaper Robe will always come with Reaper Hood, and both are part of an outfit: Reaper Costume. When worn it will cause your character to hold a scythe, the effect is cosmetic and will not be used as a weapon.
- Added to the game.