The Motherlode, Excavator [Fallout]

Set: Fallout Type: Legendary Artifact Creature — Robot Rarity: Rare Cost: {3}{R}{R} When The Motherlode, Excavator enters the battlefield, choose target opponent. You get an amount of {E} (energy counters) equal to the number of nonbasic lands that player controls.Whenever The Motherlode attacks, you may pay {E}{E}{E}{E}. When you do, destroy target nonbasic land defending player controls, and creatures that player controls without flying can't block this turn.