Chinchou

You may cast Chinchou from your graveyard if you sacrifice a Berry or pay {u}{u} in addition to paying its mana cost to cast it.
When Chinchou enters the battlefield, it explores (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise put a +1/+1 on this creature, then put the card back or put it into your graveyard.)
Protection from monocolored-blue and sources that cost {e}.
{u}{u}, {t}: You get {e}.