Catacomb of eternity

This card cost one less to cast for each creature
in your graveyard.
whnever one or more creature are send to the graveyard put one load counter on this card.
you may remove one or more load counter from
this card if you do search your library for a
creature card with converted mana cost les than
or equal to the number of load counter remove
that way. put that card in to the graveyard.