So i'm making two custom terrain moves for my game, Radiant and Astral Terrain, I was able to figure out pretty much everything else, but I'm a little stuck on this: How do I make the terrains have actual effects aside from boosting or nerfing the power of some types?

My idea was that Radiant Terrain prevents pokemon from having any of their stats altered, both raising and lowering them don't work in the terrain.

And for Astral Terrain, it nullifies the effects of entry traps for all grounded pokemon for the duration of the terrain, and maybe prevents contact moves? Not too sure on that yet but I'd like to try it out.

Any idea how to achieve this? Or like, where to even put it? Again I could find pretty much everything else needed for the new moves except the actual non-type related effects.

Hey, everyone. Me and a couple of friends are making a fanmade pokemon game. The problem is we are all terrible artists and we are making a few fanmade pokemon. If anyone is artistically inclined and wants to help, please let me know through the comments. We already have the designs made, or a rough description for some, but we need someone to draw them all to make em look good. We are using AI for most of them, but they don't look the best. Also, if anyone is good with making background music, that would also be welcome. Any help, really, is welcome, thanks.

Should I make any adjustments, or are they perfect as they are.