A summary of the ninja of EE!!

With prerequisites only requiring you be level 15, the thief is the first melee DPS attainable and focuses on survival techniques. Known mostly for its high crit damage when using sneak, the thief is able to hide away from the aggro from mobs, at the expense of movement speed, or, in the case of hidden force, limited time.
Thiefs can also combo their invisibility with deadly containment to stun enemies, and swift attack, a triple hit move that can take out enemies at a rapid pace. It's good for PvP, if used right, and even gets an awesome mask once level fifty! And, to make matters better for some people, it is so far the only class to wear shorts beside the engineer. XD
Normally, thiefs use the dual daggers, gaining 10% p-attack when having them equipped. Like all melee classes, agility is their highest natural stat, with the exception of the martial artist. Attack speed and evasion is the road most thiefs go, lest you wish to stray from that road for another purpose...