Mucktrawling

Search your library for a land card, put it
into your graveyard, then gain life equal to
the number of land cards in your graveyard.

Mulch-{3}{b/g}{b/g}. sacrifice a land. (You may
cast this spell from your graveyard for its mulch
cost minus {b/g} for each land you exile from your
graveyard. Return those lands at the end of
your next upkeep.)