Why, because the draft environment? These guys have seen a couple of reprints, in particular Swords to Plowshares.
For draft and because they are staples of white decks. I want to see good Legacy cards ending up in the hands of new players. My local shop doesn't run Legacy due to player disinterest. Hoping EM changes that.
Belcher, RUG Delver, Death & Taxes, Colorless Eldrazi, Goblins