At the beginning of your end step, if you didn't cast any spells this turn, Smoldering Ground deals 1 damage to you. When Smoldering Ground enters the battlefield, put a land you control on the bottom of its owner's library. : Add  to your mana pool. : Smoldering Ground becomes a 2/2 red and green Troll creature with trample until end of turn. It's still a land.