Intrepid Pathfinder

Basic landwalk
Whenever Intrepid Pathfinder attacks, you
may pay {2}. If you do, Intrepid Pathfinder 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.)