When Scrub of the Burnwillows enters the battlefield, return a land you control to its owner's hand. : Add  to your mana pool. Activate this ability only if you control a Swamp. : Add  to your mana pool. Activate this ability only if you control a Mountain. : Scrub of the Burnwillows becomes a 2/2 black Wizard creature until end of turn. It's still a land.