>>35670334Geodude has super high Def anon. Very few Fighting moves can kill it in one hit unless you can pick up an unusually strong one like Submission.
>>35670446Literally git gud. If you can't anticipate what kind of Pokémon trainers might have, and what kind of moves they'll have, you shouldn't be playing nuzlockes. Consider using an exp hack if kids games are too hard for you :^)