Races: All races. (Optainable for all, by finding the secret note. (Read below))
Class Racial: Confusion (http://www.wowitemcreator.com/view/142086/Confusion.html)

History: Thousands of years ago, an old note was found. It contained information, about a secret class. A class, being able to change her/hes look, to anything, and charm enemies. The note got lost until it was found, a few years ago, and now, its true power is finally released. It is told, that in the battle between Arthas and Illidan, a small piece of paper felt out of the pocket of Arthas. It was picked up after the battle, by a Goblin, named Tirin Kur, which has hidden it in many years.

This race will only reveal itself, if the secret note is found, in Azeroth.

All resistances reduced by 100.
May only wear Staffs and Wands.
All abilities awards an debuff called 'Weak' which is (damage done by spell * 0.25 - Spirit), and stacks. If it's DoT's, it will be (number of ticks * 80 - Spirit)
Primary attributes: Spirit, Stamina, Intellect.
Because of the darkness of the mind of this class, non-racial heals will only do 50% of the originally heal.
When a Mindhunter dies, all enemy targets within 8 yards, will flee in fear for up to 4 seconds.

Abilities, worth to mention:
Madness (http://www.wowitemcreator.com/view/142097/Madness.html)
Torch of Darkness (http://www.wowitemcreator.com/view/142104/Torch_of_Darkness.html)

I made an terrible mistake there.
Mana cost of all abilities is (Damage done by spell * 0.25)Mana this COUNTS for critical strikes aswell. DoT's are (Damage done by each tick * seconds between each tick - Spirit) As an example, we take the priests 'Shadow Word: Pain', let's say he does 300 damage each tick, there is 3 sec between the ticks. That would be (300 * 3 - Spirit).