A Pokemon that can learn moves for the contest you want to enter in, using pokeblocks made from berries like spelon berry or durin berry or ganlon berry or belue berry or pamtre berry or watmel berry or salac berry or leichi berry or petaya berry will give you better levels and less feels expeccially if you blend with 4 people.
You can find the normal rank contests in Pokemon ruby and Sapphire is in Verdanturf town
the only way to evolve it is to have the feebas at a high BEAUTY status for Pokemon contests. and the best way to do this is to have a feebas with a MODEST nature.
altaria
the best pokemon to use is mudkip.
Use Iron Defense then on the next turn use Take Down.
in Pokemon D&P i would use Garchomp in Pokemon emerald,ruby,+ Sapphire i would use sceptile
Fill the Paints of Second floor.To this complete all Master Ranks of Contests.
Pokemon Contests were not "invented" yet.
treecko
The best water Pokemon in sapphire would probably be Kyogre. -Hope I helped...:D
treeko
Wurmple