All you need to do is put the action replay code in if you don't have one you can use rare candys or battle the gyms a lot or put Pokemon in the day care center and come back in 12 hours
well, i level up pretty fast when the Pokemon you are trying to level up was a traded Pokemon, and when it has the lucky egg or exp share
Luxio evolves into Luxray exactly at level 30 on Pokemon platinum.
Then you have a level 70 pokemon!
Giratina is level 47 in Platinum and level 70 in Diamond and Pearl
level 30
Level 100
at level 34
Milotic
Arceus
Level 934, that's the highest they go.
Have the Pokemon hold a lucky egg.
At level 10.