Pokemom hacking question

[Link2113]

So I was wondering if I could simply replace any pokemon with another pokemon without any problems. For example: Lets say I want to replace Togepi with Suicune, could I rename PkmSuicuneBrres.pac into PkmTogepyBrres.pac and replace the original Togepi file? Would that work?, thanks.

Edit: Tried it out, didnt work. I replaced Goldeen with Suicune, and when I got goldeen a giant suicune appeared making the goldeen sound, and thats it lol.

Could someone please help me out regarding what I said above, I just want to replace the useless pokemon with legendaries.

Note: Using Riivolution, because its much easier to use, and i couldnt get GeckoOS to work

Thanks

[Shinobu Nyan!]

You have to manually replace the models in the pokemon you want to replace. Renaming doesn't work, idk why. Maybe file structure.