The Fascinated

Whenever a land enters battlefield under your control, The Fascinated 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.)
You may play an additional land on each of your turns for each +1/+1 counter on The Fascinated.
You can't play basic lands.