The levels of the gym vary around to almost level 40 so make sure your up to 40 and above.
Take them to the elite 4 and battle there.
Take high level Pokemon that know attacks, then attack opponents Pokemon and hope for the best :-)
take your low level Pokemon to the Pokemon league and make shure they are first in your party then as soon as the get sent in you switch out to your level 100 giratina or something
After you beat the Elite Four and Champion,go to Steven's house in Mossdeep City.Read the letter on his desk if you want,then take the Poke Ball on his desk.Inside the Poke Ball is a Beldum.It is a Baby Beldum at Level 5.
Give it an EXP Share and take 5 other strong pokemon. Then go through the Elite Four. I can guaratee that it will be at least Level 20 when you finish.What I usually do is take my strongest Pokemon and go to a route with high level Pokemon, and put the level 1 in the first slot. When you get into a battle, immediately switch to the stronger Pokemon and battle. The level 1 will gain experience extremely quickly.
It depends what level the Pokemon is. If it is a lower level it will take about ten minutes It a higher level it could take up to an hour
Collect yellow and red shards and take them to the treasure hunter just to the west of mossdeep.
You should swap your party Pokemon with a friend and get them to level them up so it gets double the exp point. Also you could give it an exp share and take it to the Pokemon league, if it is too weak to fight then it doesnt have too but it still gets alot of EXP the average Pokemon will grow to level 32 if you take it through the Pokemon league with an EXP Share (I take it through with a level 100 Rayquaza so this may vary for other Pokemon).
You must defeat the Elite Four and Steven first. Once you've done this, fly to Mosdeep City, then go into the house towards the north-west of the city that has no people in it. There should be a Pokeball there and a note from Steven saying that he left the Pokemon inside for you, which is a level 5 Beldum. At level 20 it evolves into Metang, and then at level 45 Metang evolves into Metagross. After beating the Elite Four, head to Steven's house in Mossdeep. In there, take the pokeball. The Pokeball will give you Beldum, which you will have to level up to Metagross
you can do it anywhere the lower the wild pokemon's level the longer it will take
After beating the Elite Four, head to Steven's house in Mossdeep. In there, take the pokeball. The Pokeball will give you Beldum, which you will have to level up to Metagross.
level it up and teach it strong moves and try to teach it moves with tms like shadow ball that is good against psychic actually in Pokemon emerald version the Blaziken wont take shadow ball .....soooo...idk wat your playing Lvl 100???