The Fifth Edition was released in order to rotate the contents of the
basic set. The rulebook was updated to include more rules and to be
more detailed, while at the same time streamlining the old rules.
The cards have white borders and no expansion symbol and
"copyright 1997" is on the base of the cards.
The 449 card set's breakdown by rarity looks like this:
128 cards were removed from the set and 199 cards were added bringing the
set size up to 449 cards. Mostly cards from
Ice Age, Chronicles,
and Homelands were rotated in. Basic lands
appear in starter decks and not in booster packs.
Cards were available
from March 1997 through well after the end of the print run in April 1999.
The print run is estimated at 800 million cards.