Multani, World Walker

Earthbound (This spell costs {1} less to cast for
each land card in your graveyard.)
Landfall — Whenever a land enters the battlefield under your control, Multani,
World Walker explores.(Reveal the top card
of your library. Put that card into your hand if
it's a land. Otherwise, put a +1/+1 counter on
this creature, then put the card back or put it into your graveyard.)