At the beginning of your end step, if you didn't cast any spells this turn, Salt of Whispers deals 1 damage to you.
: Add
to your mana pool. Activate this ability only if you control a Plains.
: Add
to your mana pool. Activate this ability only if you control a Swamp.

: Salt of Whispers becomes a 0/4 white and black Cleric creature with defender until end of turn. It's still a land.