That's correct, it's a system to balance progress, although it resets with Rebirth. But if you think the increase is too large, I can correct it. The collider's stats increase by 1 diamond each time you use it; that helps prevent players with Furrymons with 100,000 AT. XD It's quite difficult to keep them under control.
Perhaps it's because of the age of your account; it's locked until the 7th if I remember correctly, but don't worry, I've fixed the breeding system and now you can have infinitely better offspring.
