Suggestion

When the suggestion spell is cast, the spellcaster influences the actions of the chosen recipient by the utterance of a few words -- phrases or a sentence or two -- suggesting a course of action. The creature to be influenced must, of course, be able to understand the wizard's suggestion.

The suggestion must be worded in such a manner as to make the action sound reasonable; asking the creature to stab itself, throw itself onto a spear, immolate itself, or do some other obviously harmful act automatically negates the effect of the spell. However, a suggestion that a pool of acid was actually pure water and that a quick dip would be refreshing is another matter.

The course of action of a suggestion can continue in effect for a considerable duration. Conditions that will trigger a special action can also be specified; if the condition is not met before the spell expires, the action will not be performed.

Note: This version of suggestion originally appeared in the 2nd Edition Player's Handbook for Advanced Dungeons & Dragons from TSR. Its use here is for the purposes of providing context for the campaign only.