I tend to save them in case of shiny Pokemon that tend to teleport/self-destruct/explode.
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Soulsilver FC: 0562 4179 9801
Black 2 FC: 3526 0102 7313
Challenges:
Heartgold Nuzlocke: Completed!
Pearl Nuzlocke: Completed!
Heartgold Gender Discrimination Challenge: Completed!