Use lots of rare candies.
actually that's incorrect u have 2 raise them by battle
give it a lot of rare candys
Use rare candy on it
She has a Spiritomb, a Roserade, a Togekiss, a Lucario, a Milotic and a Garchomp just get Pokemon super-effective against them at about level 55 - 60 but keep in mind that Spiritomb doesn't have a weakness but don't worry because you can just use your strongest Pokemon's attack and take it its not too big a worry.
Because a level 100 Pokemon can no longer level up, it cannot learn new moves in that way. However, move tutors can teach a Pokemon new moves regardless of level, as can TMs and HMs. In Diamond, Pearl, and Platinum, there is also a man who will teach your Pokemon moves it could have learned at earlier levels in exchange for a Heart Scale.
use the 100% complete pokedex cheat with the action replay(thats what i did).
It would be easiest to help if I knew your version... The best way is to use a exp. multiplier code and a lucky egg (doubles earned exp.) There are also *easily* found codes that cause wild Pokemon to be lv. 100.
First you need to level it up then when you level it up to level 31 it will evolve into Lumineon.
you can give them a lot of rare candies
there is no easy way to get to level 100 just stock up on joy seeds until you have enough for all your pokemon or just the pokemon you want to be at level 100.
Battle the Elete Four over and over again and eventually your Pokémon will get to lv. 100.
a easier way of leveling up is below! Pokemon level 1-30 find a level 50 Pokemon Pokemon level 31-100 find a level 100 Pokemon Pokemon level 101-200 fight a level 200 Pokemon Pokemon level 201-300 fight a level 300 Pokemon and so on... WARNING YOU MUST DO THIS ON VERY EASY!!
NO ! ! ! ! ! ! ! ! ! ! In red and blue only pokemon's level can go way beyond level 100.
There is an easy way to get your Pokemon to a certain level. All you need to do is collect rare candy and use it on the Pokemon you want to level. This will automatically level up your Pokemon.
beat the ealeat 4 100 times or fite Pokemon were you catch dialga 10000 times both are hard never use cheats or your game will crash
get all of your pokemon to lv 100
Give a pokemon an exp. share and keep going through the pokemon league again and again. You can also use a gameshark for gameboy Advance
You have to keep battling to increase your EXP. points or use Rare Candys
the fastest way to get Pokemon to level 100 is to keep battleing the elite 4 and chapion with wat Eva Pokemon u want at level 100
There are literally hundreds of ways to get a level 100 pokemon. One way is by trading with a friend or through the GTS. Another way is to just train hard.