As an action, you attempt to turn one creature that you can touch or see within 18 meters into crystalized salt. If the target’s body is made of flesh, the creature must make a Fortitude saving throw.
On a failed save, it is slowed 2 as its flesh begins to harden.
On a successful save, the creature isn’t affected.
A creature slowed by this spell must make another Fortitude saving throw at the end of each of its turns.
On a successful save, the slowed level is reduced by 1.
On a failed save, the slowed level increases by 1. The spell ends if the slowed level is reduced to 0. If the slowed level reaches 4, the creature is turned to salt, no longer makes saving throws each turn, and is subjected to the petrified condition for the duration.
Since this spell induces the process of becoming petrified, any effect that removes petrified apply to it.
If the creature is physically broken while petrified, it suffers from similar deformities if it reverts to its original state.
If you maintain your concentration on this spell for the entire possible duration, the creature is turned to salt until the effect is removed.