Transmute water to dust

When transmute water to dust is cast, the subject area instantly undergoes a change from liquid to powdery dust. Note that if the water is already muddy, the area of effect is doubled, while if wet mud is being transmuted, the area of effect is quadrupled. If water remains in contact with the transmuted dust, the former quickly soaks the latter, turning the dust into silty mud (if a sufficient quantity of water exists to do so), otherwise soaking or dampening the dust accordingly.

Only liquid actually in the area of effect at the moment of spellcasting is affected. Liquids that are only partially water are affected only insofar as the actual water content is concerned; however, potions containing water are rendered useless.

Living creatures are unaffected, except for those native to the Elemental Plane of Water, which suffer damage from it. Such creatures receive saving throws vs. spell.

Note: This version of transmute water to dust originally appeared in the 2nd Edition Player's Handbook for Advanced Dungeons & Dragons from TSR. Its use here is for the purposes of providing context for the campaign only.