Dheryth's Stone Integrity
(Abjuration)
Reversible

Range:  10 yards per level
Components:  V, S
Duration:  1 year
Casting Time:  1 turn
Area of Effect:  One 20-foot cube per level
Saving Throw:  None

This spell, cast upon a volume of rock, prevents the correct operation of transmute rock to mud spell in the following way:
1. If the caster of stone integrity is of higher level than the caster of transmute rock to mud, the latter spell automatically fails.
2. If the caster of transmute rock to mud is of a level equal to or higher than the caster of stone integrity, the former spell has a chance of correctly operating equal to 10% plus 10% per level that the former wizard is higher than the latter. Even if transmute rock to mud works, its area of effect is reduced to a percentage equal to its chance of working. For instance, if transmute rock to mud has only a 30% chance to work (and does), its area of effect is only 30% of what it should have been.
Stone integrity grants no other bonuses to the rock and may be dispelled. The reverse of this spell is earth integrity, and prevents the operation of transmute mud to rock in a manner like above.

