Psatkha, do you know why the creators of NCF gave all the "dummy" creatures a weekly growth rate of 0? It's inconvenient: for example, they all appear on the enemy selection screen, and you have to click for a long time to find the right one.
The growth rate should be filled in differently, otherwise the game will crash. Another thing is that they once thought that 999 wasn't that much, but not all IDs have been used yet...
Sincerely, Psatkha
P.S. Let's use "you" ;)