After credit rolls at steam cave - summit
You must defead him and he will always join your team
uxie is at the end of steam cave
The sky stairway
I don't think you can!
no, u can only recruit it.
you must to beat uxie a second time then he join you
they ask you if they can be on the tam
Crystal Cave or Crystal Crossing
It may take several attempts to recruit legendary Pokemon in Explorers of Sky.
Miracle Sea and Surrounding Sea
mission recruit or egg
you cant recruit him. there are only 492 Pokemon recruitible in the game
no but you will find the statue of arceus