At the beginning of your end step, if you didn't cast any spells this turn, Tidal Barrens deals 1 damage to you. : Add  to your mana pool. Activate this ability only if you control an Island. : Add  to your mana pool. Activate this ability only if you control a Swamp. : Tidal Barrens becomes a 2/2 black Rogue creature until end of turn. It's still a land.