there are no lvl 100 Pokemon in the wild. The only ways to do so are to...
1.train a Pokemon to that level or..
2.be as cheap as everyone else and use a GameShark, you would be surprised at what those things can do to a game.
in victory road at lv.38-lv.42
lv 100
You can only do this by hacking into the game and tweaking it.
lv.11
LV:36
at lv 45
Use these pokemon : 1. Empoleon lv.70-lv.100 2. Lucario lv.50-lv.100 3. Garchomp lv.45-lv.100 4. Dialga lv.60-lv.100 5. Staraptor lv.50-lv.100 6. Azumarill lv.90-lv.100 or have 6 of one of the pokemon above
it depends what level if it is LV 100 keep it and catch more pokemon, but if it's only lv 70 i would say start over and then get rayquasa later
any where after ur selected Pokemon are at lv.100
probably a... lv 100 arceus lv 100 salamence lv 100 tyranitaur lv 100 darkrai lv 100 genosect lv 100 mew
it evolves at lv. 26
at lv 38