Question

I'll give EV training a shot.....

Answer 1

Black / White:

CELESTIAL TOWER:
Litwick 1 EV
Elgyem 1 EV

Comments

Litwick are more common on every floor except the roof where they are equal.

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Sorry i got this answer from somewhere else

Answer 2

Well depending on what you have got(it is different for everyone because it is random) you get S.Attack producing Pokemon in White forest. There is the Celestial Tower where it is all Litwick and Elgyem which give of 1 S.Attack EV each.