by Dam the Man
There are some differences between certain versions/editions, main one being the grey/white split being 6/6 vs 7/5, with Wild being all white in one edition (12 cards) and having a 6/6 in another. Since you can only play a Grey + White (apart from Merry or Pippin) on your turn, have Grey Wilds makes it easier.http://www.boardgamegeek.com/article/3075484#3075484