Other contributors have said "How do you make the nature modifier code work this is the code that changes your pokemon's nature?" is the same question as "In pearl is there a code to change pokemon's natures?" If you believe that these are not asking the same thing and should be answered differently, click here
In pearl is there a code to change pokemon's natures?
Well, there is no such thing as a nature modifier that works with poke modifier. it's realy stupid =/ actually there is a Pokemon nature modiferand whoever awnsered this is really stupid (good...