(Watery Cavern isn't a spell.) At the beginning of your end step, if you didn't cast any spells this turn, Watery Cavern deals 1 damage to you. : Target player exiles a card from his or her graveyard. , Pay 1 life, Sacrifice Watery Cavern: Search your library for a Island or Swamp card and put it onto the battlefield, then shuffle your library.