Mass Sleep

What if the foes aren't really evil? When the caster is endangered by non-evil creatures he or she doesn't want to kill, then Mass Sleep, the stronger version of the Sleep spell, is very useful. Casting it will cause a whole group of foes to fall asleep, allowing the caster and party to peacefully walk away from the site of a possible battle.

It is interesting to note that the Sleep spell, before Ultima VI, actually worked as Mass Sleep, inducing sleep in all beings in the area. Only from that game onwards it was reduced to targeting a single enemy.