I know, but I don’t want to bank on him being faster tbh. In regular play, I would absolutely do that. But it’s not a good mon for that fight anyways. Steel and electric are simply not that good against ground. Not enough to worry about me ground-proofing it, for sure.
I am much more confident in training the water type, since it has rather good special, and ground Pokemon usually have pitiful special defense. It’s a better pick, not only for resistances, but also type coverage and move effectiveness.
Also, I reeeeaaaaaalllllyyyyyy don’t wanna lose the magnezone. If it dies, Nuzlocke rules say I can’t get another one, and it is going to be an unbelievably useful Pokemon in the future.