When the channel stench spell is cast, the priest draws in a deep breath and expels it toward his opponent. All noxious odors from up to two miles away are channeled through the priest's breath and ejected in a vile cone of stench. All breathing creatures retreat and gag, or at minimum suffer watering eyes and labored breathing.
Note: This spell originally appeared in this form in the Earth, Air, Fire & Water supplement for the AD&D game from TSR. Its use here is for the purposes of providing context for the campaign only.