In Pokémon Diamond and Pearl, you only have one chance to capture Uxie. If Uxie faints or if you run away, then you will not get another chance to capture it. The answer is no.
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It will run away
They will run away, and you have to find them in the wild and capture them.
After the events of spear pillar check out all of the lakes and battle uxie and azelf, Mesprit will run away Sargent Pickles response: I caught uxie but defeated azelf by accident and i tried like 20 pokeballs on uxie until i had to use my master ball it just would give in lol but u can catch it :)
You have either fainted it or it isn't time yet. You HAVE TO beat the elite four before you catch any of the 3 guardians. If this is not the reason, there is no way the uxie isn't their... only creselia and me sprit run away. Hope i helped
No, once they're gone, they're gone....Sorry....If I were you, I would buy some new puffles....