How the hell I can make my digimon stats grow? I know it's by training and leveling, but there's a point that no matter how much levels the Digimon have I can't train him anymore and it keeps showing the message: "level up your digimon and try again" or something like that. There are Digimon that I would like to stay in rookie (like Lucemon), champion and perfect form (HolyAngemon, because Seraphimon's spirtes sucks) and this mechanic is making things hard to those digimon. Is there any item you can feed the digimon to increase stats?
If you’ve reached the level & training cap then you can’t do much else with that digimon other than give it better equipment or apply status effects to attacks.
If you’re really invested you could try the ReBorn mechanic but I haven’t tried it myself so I can’t really give any pointers.
Otherwise just keep it as a favourite in the box and build another digimon.