Name:Lithophage
ManaCost:3 R R
Types:Creature Insect
PT:7/7
K:UpkeepCost:Sac<1/Mountain>
SVar:NeedsToPlay:Mountain.YouCtrl
SVar:Picture:http://www.wizards.com/global/images/magic/general/lithophage.jpg
Oracle:At the beginning of your upkeep, sacrifice Lithophage unless you sacrifice a Mountain.