What could Pokémon learn from other series? Namely other monster series?

>In general
Having world building mons and uncapturable bosses makes for an interesting game. Having sapient mons instead of making human designs with more effort putting into them than the series mainstays
Imagine if we could have fought zapmoltacuno, Lusamine or various rocket mechs as bosses?
>Digimon
Have more heavy duty competitive dudes about and having more branching evolutions so less dexspace is used by useless route one trash is always a plus.

>Legend of Mana
Having an interesting overworld is just as important as having interesting dex. Majority of pokemon's locals are just usual towns


>Arc the lad
Having side missions to flesh out the world made game rather interesting

>Dragon Quest
Having everything be ridable,

What else do you think could be implemented from other series?