Idea for the Shadow man Mode

While first going into this little mode , his mask starts to fully shut down and clamps his face tights , with the tank of oxygen within his mask starts to power on , it acts as a chamber to hold in oxygen while part of it filters the air completely , giving him a bit of a reserve so he doesn’t rely on a few puffs while the mask is filtering
A Tube in his mask starts pushing out the blackened air , starting to block out sight from his legs

Next phase just starts with the black columns stack over his body , his eye light shuts off and finally the smoke tube gushes out a massive cloud
Using mechanical droids over his body , it starts to churn the layer of black around his body until it perfectly conforms , and his eye lights up in a red dooming color that pierced through the smoke , but due to the color , is majorly invisible to others while giving him light to see his surroundings fully