Deathmatch 1 - The Deathing Begins
Deathmatch 1 - The Deathing Begins is a non-canon short story released through Will's mailing list on December 25, 2016. It describes a fight to the death set up by the Abidan between Simon and Urzaia from Simon's perspective. The fight is close, but Simon wins with the use of the mask.
The story can be found at this google drive link.