Zychocuda (Aberration)--Montporte Dungeon Campaign Critter
Armor Class: 4 
Hit Dice: 4
Attacks: Bite (2d4+4)
Saving Throw: 13
Special: Confusion; Fog
Challenge Level/XP: 5/240
Zychocuda are aberrations from the plane of Ioucura (the plane of madness). They appear as very large barracuda, about 9 feet in length, with black swirling eyes. They almost always appear in a school of 6-36 (6d6), swimming through the air in a thick cloud of fog that they magically create.
COMBAT: Zcyhocuda are fierce predators that swarm their intended victim/meal from as many directions as possible. They bite and tear at their opponent with incredible ferocity and are undeterred by the damage inflicted on them.
CONFUSION: The successful bite attack of a Zychocuda can cause confusion in its victim. The victim must make a saving through or succumb to the effects of confusion (the same effects and duration as the magic spell, Confusion).
FOG: A school of zychocuda created a cloud of dense, swirling fog 60' in radius from the center of the school. The entire school can only swim within the confines of this cloud. The cloud creates the sensation of water on the skin of all who are withing in, but it does not restrict breathing or movement. However, the cloud does restrict all non-zychocuda within the cloud to 10'.