You released them? I doubt they can be caught again.
Well if that's the case oh well I'll just get mine from Black.
A cloner on the trade board can give you replacements, I have all of N's Pokemon untouched, collecting dust on my PC's box 24, but I am full of trade and RNG requests, I won't be able to trade until next Monday, but believe me, it's worth it :)
3DS FC Ares 3738 0446 1787 <> Black 2 FC Enyalio 0562 4621 2772 DW Collection: http://tinyurl.com/3qz7odk