Reaper's Scythe

The Aspect Legacy Jet had received was similar to most Aspect Legacies — which were usually Memories uniquely suited for the Aspects of their wielders, or much more rarely powerful Echoes. However, that similarity was deceitful. 

In truth, Soul Reaper's Aspect Legacy was almost as weird as Sunny's. Although it looked like a weapon, it was not a Memory… instead, it was an Innate Ability. Jet did not need essence, no matter how little, to summon the chilling mist and turn it into a scythe. The mist was simply a part of her soul now. 

Its form was also not set in stone. The mist blade naturally manifested into a beautiful war scythe, but it could assume the shape of other weapons, as well — as they watched, Jet turned it into a khopesh, a misericorde, a bec de corbin, and an actual scythe. There seemed to be only five available forms, at least for now.