Captain of the Seas

When this creature enters the battlefield, 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.)
Navigate {u} ({u}, {t}: Exile this creature. Draw a card. At the beginning of your next upkeep, return this card from exile to the battlefield under your control. Navigate only as a sorcery.)