Land of a Thousand Dreams

Tap all permanents. Those permanents don't untap during their player's next untap step. Each player searches their library for a basic land card and puts onto the battlefield tapped.
"Looks like i've done half of my job, so it's time for a nap, i'll be back to finish it in a day or two when we're both awake again." - Kit-Kat, Guardian of Sleep