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.
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.