Leonine Bryophyte

When Leonine Bryophyte damages a player, put
all land cards from that player's graveyard onto
the battlefield under your control. Mana they
produce can only be spent to play spells from
your graveyard.

Mulch {5}{g}{g}, exile two other cards from your graveyard (You may cast this spell from your
graveyard for its mulch cost minus {g} for each land
you exile from your graveyard, return them at the end
of your next upkeep.)