Wizards possess huge damage capability but have very little defence and endurance. They function best as a DPS, dealing massive damage witha variety of spells as well as being able to effectively maintain stun on a single enemy.
The Unique skills for the wizard include:
In pvp they lose to almost every class in game due the lack of defense, hunters/shades gonna one shoot kill you after you hit level 20 in pvp areas,you will not solo bosses(unless you are not human) and enemies might kill you easily.
As a wizard your might be more usefull in parties as a dps and you can one shot kill enemies and players(Well shades will stay invisible and provabily will do the first shoot killing you).