This Gym Leader is Norman. He is a Norman Type Gym Leader. Here is the list of his Pokemon.
First Battle
Spinda Lv .27
Vigoroth Lv .27
Linoone .Lv 29
Slaking .Lv 31
There must be a Rematch with Norman. I can't tell you all of the Pokemon. I'm sorry. You can't rematch him in Pokemon Ruby and Sapphire. Only Emerald.
If you want to know all of Norman's Pokemon, go to Google, type pokemon norman, then you'll find out about Norman's Pokemon. He will also be in Pokemon Black 2 and White 2 for the Pokemon World Tournament. If you want to rematch Norman, you need to have Pokemon Emerald, then Norman will call you for another match. In your PokeNav, you see a Pokeball by Norman's name? That means he wants to rematch you. Also, you will battle other Gym Leaders in Pokemon Black 2 and White 2 also. Hope this Helps! PS Fighting Type will help you defeat Norman's Pokemon because it's Super Effective aganist Normal Type Pokemon. :)
Level 30 or under
any level up to 100
Level 20.
there is level 70
soodoowoodoo level 30
These are the Gym Badges that make your Pokemon obey:Knuckle Badge: Pokemon up to level 30 obey you.Heat Badge: Pokemon up to level 50 obey you.Feather Badge: Pokemon up to level 70 obey you.Rain Badge: All Pokemon regardless of their level will obey you.
every second gym leader will allow you to use higher level Pokemon
With the seventh badge in Pokemon Ruby version, you can control caught or traded Pokemon up to level 70.
Level 100.
Lairon evolves at level 42-45 in Pokemon Emerald version.
Level 30 or under
Poochyena is a dark type of Pokemon. In Pokemon Emerald it will evolve if you raise it up to level 18.
Snorunt evolves at Level 42 in "Emerald."
Combusken evolves at level 36 in Pokemon Emerald.
Which Pokemon?
any level up to 100
in Pokemon emerald is level is 70^^