Soul Slicer AKA Dragon Slayer or Kana River

Wielder: River Lily Arc

Type: Katana

Description:
Looks: Soul Slicer is white and red it looks similar to a Grimm mask and has a handle that looks like a dragon horn from Kana.

Dust: Void and Gravity

Other:
The Gravity Dust makes kana lighter to wield, the Gravity and Void Dust makes the red in soul slicer flash purple every now and then.