Suggestion

The caster influences a target creature by suggesting a course of activity limited to a sentence or two. The suggestion must be worded in such a manner as to make the activity sound reasonable. Asking the creature to do some obviously harmful act automatically negates the effect of the spell. The suggested course of activity can continue for the entire duration. If the suggested activity can be completed in a shorter time, the spell ends when the subject finishes the activity. The caster can specify conditions that will trigger an activity during the duration. If the condition is not met before the spell duration expires, the activity is not performed. If the recipient creature makes its saving throw, the spell has no effect. A very reasonable suggestion causes the save to be made with a penalty (-1 or -2 is recommended). The creature to be influenced must, of course, be able to understand the suggestion, i.e., it must be spoken in a language which the spell recipient understands. Undead are not subject to suggestion.