Thundering Spell

You can modify a spell to deafen a creature damaged by the spell. When a creature takes damage from this spell, it becomes deafened for a number of rounds equal to the original level of the spell. If the spell allows a saving throw, a successful save negates the deafening effect. If the spell does not allow a save, the target can make a Fortitude save to negate the deafening effect. If the spell effect also causes the creature to become deafened, the duration of this met