Wabbajack (Oblivion)

The Wabbajack, an artifact of Sheogorath, can be obtained during the quest given at his shrine.

Function
Transform any non-NPC creature into another random creature for 30 seconds. Only one creature may be Wabbajacked at any time (but they can be repeatedly Wabbajacked). Only a limited number of creatures will be created by Wabbajack. All are equally likely to occur.
 * Daedroth
 * Skeleton Champion
 * Goblin Skirmisher
 * Troll
 * Ogre
 * Sheep
 * Deer
 * Xivilai
 * Rat
 * Free Rider
 * Lord of the Rings
 * Help Me
 * Old Dude
 * Bunny Rabbit
 * Widdle Mouse
 * Demi Lavato
 * P

Usefulness
Using Wabbajack to hurt an opponent is of limited value as it has no strategic value and is purely recreational (it can be used to turn a tough opponent into a weaker one). The newly created creature is always at full health; after the 30 seconds are done, the original creature reappears at full health (even if it was injured before being Wabbajacked). If a creature is fatally injured while Wabbajacked, they revert back to their original form and die.