Eternal Stench
From AmtWiki
Description from the Dor Un Avathar
Mark out areas of foul putrescence with green (and it better be really ugly green) ribbons. No one except Troglodytes, Skirit and other such creatures may enter, unless one hand covers the players nose and mouth at all times. Players who remove their hand are immediately Stunned (per Healer spell) until removed from the area. Merely replacing a hand has no effect, the player must be removed from the area to continue.