with a pokeball
ok so catch a feebas, which i dontkno how, boost it buety to the max and teach it some good water moves
supe rod
To catch feebas, follow the path to the lake. The feebas do not appear in every square, so you will have to be patient and vigilant in order to collect them.
You can't.
The Rain does not affect the Appearance or Catch Rate of Feebas, so yes, you can.
What you need to do is grab a super rod. It is rare to catch so go out deep.
You can catch it in mt. cornet, it changes its location in mt. cornet by day so try your luck at each bed of water
Leafeon is a fourth generation pokemon, so you cannot own it in ruby (a third generation game), let alone catch it.
I haven't catch these Pokemon yet: - Nosepass - Feebas - Chimecho They all rare, so of you ask what is the rarest Pokemon, I can't answer it. But if you ask what is the rare Pokemon, my answer is above
You would have to start a new game and catch the Pokemon again.
I don't really think you can. The thing is, in Sapphire you can catch Lotad but not Seedot and in Ruby you can catch Seedot but not Lotad. However in Emerald, you can catch both. So You'd have to trade from a Sapphire or Emerald. Lotad can be found on route 114 on Pokemon RUBY!
You can't. Feebas is only in Sapphire, Ruby, and Emerald. Even in those games, he only appears in certain spots in the river near the Weather Station. So basically, he's really rare to find.