A strange ape of reclusive and solitary nature dwells in the southeastern jungles of Zirthus. The creature gets its name from the horrible stench it exudes due to its diet, which consists entirely of fruit from the rudian tree. Usually avoiding any conflict, it can become very aggressive if it feels its food source is threatened.
Armor Class: 6 
Hit Dice: 3
Attacks: 2 hands (1d3), 1 bite (1d4)
Saving Throw: 13
Special: 30’ radius odor causes -3 on opponents’ “to hit” rolls. Can hide in dense foliage and surprise on a 1-3.
The fruit of the rudian tree is well known to the primitive human tribes that share its tropical habitat. While the leaves of the tree can be rubbed on the skin as an insect repellent, the fruit itself is usually left alone. It's edible and said to have a foul flavor, but be strangely addictive. Those that consume it exude a very offensive odor, so powerful that it can cause dizziness and headaches in those nearby (though its undetectable to the consumer).
In times of war, a tribe’s best warriors will consume rudians just before battle. This is the only time its acceptable to eat the fruit in their society. Their legends speak of men who became addicted to it - over time these men turned into hideous apes, their war paint permanently etched into their skins and their stench causing men to weep and run for their lives.
The stinky rudian can only be successfully eaten by a PC if they make a d20 roll under their Constitution score. If successful, after 3 turns their armor class will improve by 2 points in a 30’ radius. This effect will last for 8 hours. Characters who have not also eaten the fruit will refuse to stay within 30’ of them, although another Constitution check is allowed.
If a rudian is consumed more than twice in a month, a saving throw must be made or else the PC will become addicted. If this is not cured within a month and even if no more rudians are eaten, the character will transform into a skunk ape (save allowed).
A rudian tree is rare - only one will be found in any 5 mile area. At any given time, a tree will have 3d6 fruit hanging from it.
I’ve been wanting to write up a skunk ape for awhile, Aaron’s post reminded me...
Text of this post is licensed under the OGL.