You have to train him to about level 55. Use leaf blade on every Pokemon apart from kingdra. He can rip him to shreds. Use a Pokemon, around the same level as
kingdra, that is not a dragon type, with a dragon type move, gyarados is a perfect example.
Or, alternatively, you can go to the sky pillar and catch rayquaza. If you want to use your master ball, because the lati's are not that good, honestly.
I've done both, but still, swampert is the best starter in R/S/E(Ruby, Sapphire, Emerald)
there easy i can beat any of them with a grovile,treeko and sceptile using absorb or leaf blade.
I did! :p
I used a newly caught Rayquaza around lvl.73 and my sceptile around lvl 75 i also got a coupl other Pokemon but ended up not using them. for the first person, i used sceptile. for the second person, i pretty much just used rayquazas fly. for the fourth i used mainly sceptile. for the third i used both and for the champion i used mainly sceptile. of course i also stocked up on a lot of ful restores and revives
Defeat Wallace in sootopolis city, you can only come there by using dive.
try using bug type moves.
Sceptile learns false swipe at level 59. This Pokemon evolves from Grovyle at level 36. Sceptile is a final form but using a mega evolution stone, does have a mega evolution.
You need to find and defeat Team Aqua by using the Dive HM and finding their underwater base. Afterwards you will need to go to Sootopolis and talk to Stephen who will take you to the Cave of Origin. Talk to Wallace there and then go to the Sky Pillar (which is east of Pacifidlog town on route 131-check your pokenav if you dont know where that is).
i'd recomend using a grass type like sceptile or ludicolo but if you choose sceptile, watch out! or ice beam could do some great damage
They have psychic types so ghost types and dark types will easily defeat them and since its a double battle try using move combos like helping hand and then a move that hits both pokemon.
Mostly water types but he has a Kingdra so watch out.
you have an awesome team but you're using too many legendaries take latios out and put in a electrical Pokemon or a dark Pokemon because you have 3 Pokemon that are legendaries.
If you are using ruby or sapphire, you will see drought/thunderstorm. then you take the red orb/blue orb and go to the cave of origin and fight groudon/kyogre. You can either catch or defeat it. If you are using emerald, you will see groudon fighting with kyogre. Then u must go to the sky pillar and find rayquaza. After you defeat/catch rayquaza, you will see a cut-scene that rayquaza stopping the fight. When you have defeat the elite 4 you can catch groudon and kyogre.