- For other Transmutation Spells, see Transmutation Spells. For The Wizard Spell, see Transmute Rock to Mud (Wizard Spell).
This spell turns natural rock of any sort into an equal volume of mud. If it is cast upon a rock, for example, the rock affected collapses into mud. Magical or enchanted stone is not affected by the spell. The depth of the mud created cannot exceed 10 feet.
Creatures unable to levitate, fly, or otherwise free themselves from the mud sink at the rate of 1/3 of their height per round and eventually suffocate, save for lightweight creatures that could normally pass across such ground. Brush thrown atop the mud can support creatures able to climb on top of it, with the amount required decided by the DM. Creatures large enough to walk on the bottom can move through the area at a rate of 10 feet per round.
The mud remains until a successful dispel magic or transmute mud to rock spell restores its substance—but not necessarily its form. Evaporation turns the mud to normal dirt at a rate of 1d6 days per 10 cubic feet. The exact time depends on exposure to the sun, wind, and normal drainage.
The reverse, transmute mud to rock, hardens normal mud or quicksand into soft stone (sandstone or similar mineral) permanently unless magically changed. Creatures in the mud are allowed a saving throw to escape before the area is hardened to stone. Dry sand is unaffected.
The material components for the spell are clay and water (or sand, lime, and water for the reverse).
Notes: Common for druids (PHB).
Player's Option: Combat & Tactics[]
- From: Escalades (POCT)
Transmute Rock to Mud: This spell effects only “natural” stone. Stone which has been created or protected by magic is unaffected, as is stone which has been artificially shaped on all four sides. For example, the walls in a simple tunnel driven through solid rock are subject to this spell, but if the tunnel were lined with brick or stones that had been worked into blocks, a transmute rock to mud spell could not harm them. This spell still is very useful in a siege, however, as virtually all castles must be built upon bedrock in order to support the weight of the walls. It is possible to use a transmute rock to mud spell to undermine a wall by attacking the bedrock underneath, provided that the spell has enough area to reach under the wall and that the mud can flow out and leave a cavity under the wall. In some cases it might be necessary to employ sappers or a dig spell to get at the bedrock and provide a place for the mud to go. If these conditions are met, the wall still remains unaffected if the defender rolls a 10 or more on 1d20.