Embodiment of Landslide

As long as a land was sent to the graveyard from
the battlefield this turn, you may pay {r}{g} to cast
this spell. If you do, return a land card from
either player's graveyard onto the battlefield
under your control.
At the beginning of each upkeep, each player sacrifices a land and searches their library for a land card and puts it onto the battlefield under their control.
Cycling—Sacrifice a land.