You have to fish at Sootopolis City.
catch a magikarp and evolve it
im not sure you could catch one in ruby because ruby is in the hoene region but gyrados belongs to the johto and kanto regions hope i helped
you cant catch a man in Pokemon ruby
no you can catch a charizard in pokemon ruby you can get it as a kanto starter
you can't catch seviper on Pokemon ruby (Pokemon sapphire only)
you cannot get a gyrados wild but you can catch a magikarp above lvl 20 and use a rare candy or train it one lvl
no but its spelt gyarados lol
Go to the Lake of Rage and catch one.
at the lake of rage
there are two ways of getting a gyrados in Pokemon diamond: 1. you can use a super rod. 2.you can also use your old rod to catch a magikarp and then train it to level 20 or i think 22 so that it can evolve to a gyrados.
raikou cannot be caught on Pokemon ruby
Groudon is not available in Sapphire. You have to trade it from Pokemon Ruby, and there is only one Groudon in the whole Ruby game.you cannot catch groudon in sapphire, but you can have it by transfering it from Pokemon ruby or from Pokemon emeraldyou cannot catch groudon in sapphire, but you can have it by transfering it from Pokemon ruby or from Pokemon emerald