SushiFlavouredNoodles

Well for what it's worth, there's a Sandbox Mod.  Lets you get any Pokemon you want, with whatever level/nature/IVs you want, has an infinite money generator and shops that sell every item in the game, basically it lets you do anything.  Except raise the level cap as far as I'm aware, you'll have to at least deal with that.

ye EV training drastically decreases game difficulty, especially early on when the opponents don't have full teams of EV-trained teams. Idk if I'd recommend Sandbox for a first playthrough (I'm assuming it is?) though just cause it wouldn't be as "fun" if you have everything at the tips of your fingers

I believe some1 said that a beginner mode mod would be made after the games completion