Hello_Hi_Goodbye
Thanks for the chapter, I had an idea he can create techniques using knowledge about his world, for example echolocation, releasing a sound that is inaudible to others and use it for sensorics, saturate his body with oxygen as they do in the anime "blade of the dissecting demons" use the illusion with sound or oxygen by adding a chakra there or create material illusory clones like Shisui Uchiha , but using the technique of illusory clones, the technique of transformation and oxygen in the air so that the clone has a physical shell consisting of oxygen for a while