Shao Kahn the Kahnqueror

{x}{r}: Shao Kahn the Konqueror gets +X/+0
and First Strike until end of turn.
You may exert Shao Kahn as it attacks. When
you do, destroy target land. Search your library
for a basic land card and put that card onto the battlefield tapped. Then shuffle your library.
At the beginning of your upkeep, if you control
more than 50 lands you win the game.