I don't think there is such a thing as that.
You don't need a certain Pokemon in order to get this mission... PXJ6 34F4 4Q3F QW&K YRX5 38+= Enigma Part it might say myster part put it is still the enigma part
It unlocks legendary Pokemon for you.
it is PXJ634F44Q3FQW&KYRX538+=
Secret Slab, or Enigma Part.
you put on your ds, select wonder mail, select receive, select by pass, type: PXJ6 34F4 4Q3F QW&K YRX5 38+=, do the mission, and as a reward, you get a enigma part
No Pokemon evolves by using the enigma stone or enigma berry.
First you need a mystery part or enigma part. Then go to mystery jungle at BF13. Celebi will be there.
arceus
put this in wonder mailPXJ6 34F4 4Q3F QW&K YRX5 38+=
You get it from the E Reader.
its a wifi event.
It is in Final Maze 40F you need secret stone plate or enigma part in bag (secret slab or mystery part)