Mass Charm

A mass charm spell affects either persons or monsters just as a charm person spell or a charm monster spell (qq.v.) does. 

The mass charm, however, will affect a number of creatures whose combined levels of experience and/or hit dice does not exceed twice the level of experience of the spell caster. All affected creatures must be within the spell range and within a maximum area of 3" by 3". 

Note that the creatures' saving throws are unaffected by the number of recipients (cf. charm person and charm monster), but all target creatures are subject to a penalty of -2 on the saving throw because of the efficiency and power of a mass charm spell.