Put the poke you want to have maxed out stat exp in first position.
Then save, and put in the shark, for r/b, enter these codes:
When you get into the game, turn the shark switch on for about 10 seconds, then back to norm and save the game and turn it off.
Then take the shark out, and restart, box your poke, and the stats will go up, and your poke's stat exp will be maxed out.
"Probability can be a real b!tch."
"God bless incompetence! "