Cartographer Cornifer

When Cartographer Cornifer enters the battlefield, search your library for a basic land
card and put it onto the battlefield.
At the beginning of your endstep, if you control 5
or more lands with different names, draw a card.
{1}{g/u}{g/u}{t}: Reveal the top card of your library. If
it's a land card, put it onto the battlefield.
Otherwise, put that card into your hand.
"...To chart the world... What joy..."