Philly the Kid is the main character of the original net anime, Cannon Busters (YouTube trailer), who has tattoos on his body.
Will Philly the Kid die when he'll have no more skin to be tattooed? What will happen then? Will he die permanently?
I don’t think his curse is based off of how much skin he has left to be tattooed, I don’t have a great reason as to why, outside of the fact that he doesn’t really seem to care that his death count nearly doubled in the events of season 1. I know that Philly usually is pretty rash and irresponsible, but I doubt he wouldn’t at least bat an eye if he thought there was a chance he could permanently die soon.
Since it looks like he’s been aging since he first got his immortality, I’d say his best bet at death is dying of old age.
Some of the information contained in this post requires additional references. Please edit to add citations to reliable sources that support the assertions made here. Unsourced material may be disputed or deleted.