Undaunted Adventurer

Undaunted Adventurer costs {1} less to cast if you control a non-basic Land.
When Undaunted Adventurer enters the battlefield or attacks, explore. (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 on top or into your graveyard.)
His life insurance premiums have skyrocketed ever since.