You go to the eighth gym
Uxie is indeed a rare Pokemon appearing only once in the games it can be caught in. Uxie is part of a classification of Pokemon called Legendary Pokemon. Legendary Pokemon are the rarest Pokemon and can only be caught once per game they appear in.
Uxie, Mesprit and Azelf are three different legendary Pokémon that do not evolve to or from any other Pokémon.
You find Uxie in the cave in the middle of Lake Acuity.
uxie dialga arceus palkia giritina mesprit manapy
Mesprit Uxie azlef are the three other legendary Pokemon but not very good
In Pokemon platinum there are three lake Pokemon they are:mesprit, azelf and uxie. 1.Mesprit is a travelling Pokemon so you have to find it and use mean look on it to keep it in battle or else it runs away. 2.uxie you just have to catch like any other ordinary Pokemon but you have to surf across the lake to get to it. 3.Azelf is the same as uxie, you catch it normally.
physic
Uxie doesn't evolve. It's a legendary Pokemon.
in Pokemon pearl you can get palkia, giratina, azelf, mesprit and uxie. plus any tht u can migrate from other Pokemon games
u can realese pkmn but if u relese uxie u cant get it back
Uxie is #480 in the national pokedex, and it is a Psychic type Pokemon.
you could try uxie