Contagious Vorrac [Phyrexia: All Will Be One]

When Contagious Vorrac enters the battlefield, look at the top four cards of your library. You may reveal a land card from among them and put it in your hand. Put the rest on the bottom of your library in a random order. If you didn't put a card into your hand this way, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)