Variety of Auras increase defensive attributes with some having potent offensive capabilities unique to class Focus reduces damage taken by half, with some increasing health. Alongside attack based skills provide additional effects to offense, such as attack speed, or diminish attacker's effectiveness with controlling disables. Combined altogether allow Wizard simply stand and devastate hordes of enemies.
The drawback of such power is quite low PvP competitiveness and heavy reliance on equipment. With damage lower than than of Archer and armor not as tough as Warrior, Wizard relies on superior equipment and runes.