It depends in which game. If Fire Red/Leaf Green, the Gym Leader is Giovanni, and he used Ground-type. Water, grass,and Ice would be the best things to use in this, and maybe some Flying, as they can't be touched by Ground attacks.
If it's for Ruby/Sapphire/Emerald, the Gym Leader is a Water/Ice type, so Electric and Grass type would be best.
For Diamond/Pearl, the last Gym Leader uses Electric-type Pokemon, so Ground would have the advantage here.
Only Dragon and Ice types are super-effective against Clair's Pokemon (Clair is the eighth gym leader). Even so, Kingdra is part water-type, so only Dragon would be super-effective. Clair can easily be beaten with strong Pokemon like Machamp, your Starter Pokemon, and other good Pokemon with powerful moves that would just be normal-effective.
Morty has mostly ghost type pokemon. I would suggest raising a psychic or dark type to do the super effective damage. However, if you don't have any of those, water type and/or fire type can usually get the job done.
He has electric types. He has a Richu, Luxray, Octillery(which isn't even electric), Aibipom- Normal type. A good pokemon is Torterra, or Lucario-which you can get from iron island and evolve the riolu and get Lucario.
The gym leader is Clair and she is a dragon-type Pokemon trainer. She is in Blackthorn city.
The 8th gym leader in Kanto is Blue. Blue does not use a specific type. He uses the strongest of all Pokemon, all just under level 70. He uses all types, so be prepares.
Go to Cinnabar Island. Blue, the eighth Kanto Gym Leader, will be standing there. Talk to him, and when the conversation ends go to Viridian City. He will be waiting for you in the Gym.
i dont think its "gary",its blue.he use executor,rhydon,gyrados,arcanine,pidgeot and machamp.
Ghost.
the fourth badge is obtained from crasher wake in pastoria city
In Gold the fourth gym Leader is Morty. Morty specializes in Ghost type pokemon, and his gym is located in Ecruteak city.
Morty is in the Pokemon gym inn Ecruteak city. Morty uses ghost type Pokemon. hope i helped.
In Pokémon Silver, the fourth Badge that you get is the Fog Badge and you will get it after beating Morty, the leader of the Ecruteak Gym.
It depends on the type of Pokemon you have, how you battle, your Pokemon's levels, and the gym leaders Pokemon stats and moves and type. Mine was Morty because I had four normal type Pokemon. I used Feraligatr last and wooped his butt!
The gym leader you must defeat is Morty, the ghost-type gym leader who lives in Ecruteak. To defeat him, try using types such as ghost, dark, or psychic.
Morty is the Gym Leader of the Ecruteak City Pokemon Gym.
Defeat Morty the Ghost-type Gym Leader. he will give you the Fog badge which will let you surf and make all Pokemon up to level 50 to obey you. Defeat Morty the Ghost-type Gym Leader. he will give you the Fog badge which will let you surf and make all Pokemon up to level 50 to obey you.
Morty. He has ghost type Pokemon.
the fourth badge is obtained from crasher wake in pastoria city
In Gold the fourth gym Leader is Morty. Morty specializes in Ghost type pokemon, and his gym is located in Ecruteak city.
Complete the Burned Tower and Morty's gym in Ecruteak City will be open.
johto gym leader morty
You can obtain the TM Shadow Ball when you defeat Morty in Ecruteak.
sea foam islands up the stairs?
It is in Ecrutuk city the leader is morty who uses ghost type Pokemon
in eutreaka city with the fourth gym leader morty, go to the pokemon center and he should be there