Name: Ty
Age: 15-ish
Infomation: He is kinda of a wonderer, that just ventured into the region. He is a fan of steel type pokemon. He has a tough outer exterior, but cant help but have a soft spot for small pokemont that need help. He will do almost whatever it takes to win. He trains his pokemon under the harshest conditions in order to make them stronger, also that is one reason he ventured to this region because of the weather.
In game plot: He can either be some sort of a rival or just a sub character, but he mainly just runs into the player everyonce in a while. but he kind of tracks the player being a big brother off in the distance of sorts, so when ever he is in real danger he can help. But they first meet sometime after the player gets his 3rd or 4th badge(you can decide) and chalenges him to a battle. And after the battle he is on his way. Then they meet again later when you face team Blizzard in the final battle(kinda like the rival did in D/P when you fought Mars and Jupiter). The third time you face each other is at Victory Road, just as you exit, he informs you that he doesnt think you are strong enough to face the E4(assuming there is one)and he chalenges you to a battle to test your skillz
Pokemon:
1: Scyther
2: Onyx
3: Metang
4: Lairon
2nd time
1: Steelix
2: Lairon
3: Scizor
4: Metang
3rd Time
1: Mawile
2: Scizor
3: Aggron
4: Steelix
5: Metagross
Feel free to change this to fit the storyline, i just kinda winged it :D
EDIT: Fix'd :D