2017-04-18 : Desert is a land subtype with no special meaning. It doesn’t grant the land an intrinsic mana ability. Other cards may care about which lands are Deserts.

2017-07-14 : If a Desert has an ability with a cost of “Sacrifice a Desert,” you can sacrifice that Desert to pay the cost for its own ability.

2017-07-14 : The sacrificed Desert will be in your graveyard to be exiled by the last ability of Scavenger Grounds.