The Great Unclean One

As long as The Great Unclean One is on the battlefield, you may play Horror cards from your graveyard. When The Great Unclean One dies,
you lose 7 life.
At the beginning of your upkeep, if you have
more cards in hand than each opponent, you
may sacrifice a Swamp. If you do, return The
Great Unclean One from your graveyard to
the battlefield.