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>Remove wild Pokemon giving EVs entirely (unless your Mon is holding a specific item that enables gaining EVs
>add other ways and items to raise EVs
>EXP Share can be obtained after the first gym and can be turned on/off >add certain limits to each Pokemon for every 20th level
>you can only go beyond level 20/40/60/80 if you beat the necessary gym and/or collected a specific amount of overworld items
>example: Your Zorua is stuck at level 20 until you beat the first gym and collected 5 Nightshade Violets which you have to give your Zorua, it can now gain EXP until level 40
These specific level items would exist for every type and be distributed in the overworld fairly common, but the amount you can collect in one real time day would be limited. You can, however, visit other players and collect them from their overworld. This would be a good incentive for multiplayer and still allow single player people to level up their mons (though it would take more days)
Bonus: remove IVs forever they suck. Fuck Trickroom too.