Caveman Dave

+1: Return all land cards in your graveyard to the battlefield that were put there due to effects target player controlled since your last end step.
-2: Destroy a random artifact. Then repeat this process up to X times, where X is the total power of dinosaurs you control.
-8: You get an emblem with "Whenever an artifact leaves the battlefield, search your library for a land card and put it onto the battlefield tapped."