Mages, while incredibly powerful, can be exceptionally vulnerable. They are able to deal out terrifying, awe-inspiring levels of damage at range, while taking little in return. Mages have command over the elements, summoning raging fireballs and chains of the coldest ice to wreak havoc over ranks of the enemy. They can even speak to the shattered planet, calling forth roots to bind enemies in place.
However, as mentioned, Mages are also extremely weak, and must learn to evade whenever possible. As with all classes, knowing when to fight and when to flee is vital, but this is only accentuated when the defenses of the subject are so very limited.