Why are the decamark glitches named after attacks?
Pokemon are made up from data that comes from several different locations. The name location for pokemon is just before the name location for attacks.
The base stats I am not sure where is it read from
The image, default nickname and glitch item's name are all error traps. Unfortunately there isn't an ability or type error trap otherwise none of these would glitch and crash.
(beware of JAM type pokemon because the crash error noise hurts my ears