Otto's Soothing Vibrations

As the wizard casts the spell, all creatures in the area of effect begin to hear soothing vibrations that cause them to pause and listen. As the music continues, the creatures feel the wizard broadcasting peaceful, kindly thoughts to them. The creatures do nothing until the wizard has finished casting the spell.

Thereafter, all animals in the area of effect of semi-intelligence or lower feel kindly toward the caster, and show no aggression or fear unless attacked first. All other creatures are entitled to a saving throw vs. spell at +2 bonus to avoid the spell's lulling effect. Affected animals and creatures failing the saving throw are more susceptible to charm spells cast before the soothing vibrations spell duration ends, and suffer a -2 penalty against any charm-type spell cast upon them, such as animal friendship, charm person or mammal, charm monster, and so on.

There is no somatic or material component to the spell, just the soothing, vibrating voice of the caster.

Notes: Uncommon or rare spell (WoG).