You can't without some sort of cheat device
you have to have a ditto and prinplup or empoleon
Prinplup evolves into Empoleon at either level 36 or 40
Theres one on route 212.
same as in hearthome city.. only higher levels - staravia lvl 34 - grotle, monferno, or prinplup lvl 36 - buizel level 32 (absent if he has prinplup) - Roselia level 32 (absent if he has grotle) - ponyta level 32 (absent if he has monferno)
there is a trainer on route 212. It is the 2nd trainer heading south from hearthome after you get into where it gets darker/raining
Level 36
unless you cheat you have to evolve piplup which is a starter Pokemon
If you chose Chimchar as your starter, your rival will eventually get a Prinplup. Also, at the Pokémon mansion, one trainer will have a Prinplup.
It evolves at level 16,To Prinplup (Evolve Prinplup to Empoleon at 36) :)
you have to have a ditto and prinplup or empoleon
Prinplup
you must start with a piplup and lvl it up until it evolves into prinplup and then into empoolion
U can't catch prinplup u only can evolve it from piplup and to get piplup is to cheat or at the start of the game u choose piplup as the starter hope this helped :)
level 32
your rival (if u started with chimchar)
Nowhere You Have 2 Evolve Piplup
With a Budew.