[quote=@Jangel13]
<Snipped quote by SilverDawn>

Hey I won't level up if I don't do anything right? Might as well take my chances since their is plenty of tanks to help 
[/quote]

A Level 15 Assassin DPS should be decent up to ~3x your level, with Assassinate as a finishing blow. The real problem is your hit rate, so you have to attack debuffed enemies with low Evasion.