Decay Flesh

This is a version of the cause light wounds spell (the reverse of cure light wounds), dealing 1d6+1 points of damage to the creature affected by it. The caster must make a successful attack to inflict the damage. A missed attack roll does not dispel the effect, as it can be active until used or until a number of rounds equal to the caster's level have passed. Unlike the Clerical spell mentioned, this spell may not be reversed. However, this spell does work upon undead creatures in the opposite fashion; they are healed 1d6+1 hit points instead.