Honestly, I think Assassin is the best class there. As long as you have decent flee, strong enough atk, with something such as a DDTP Main Gouche. How ever, if you wish to take down any mobs that come after you. You can also use a DDSB Main Gouche here). The second dagger I used was a moonlight dagger. Why a moonlight dagger? This is because of the fact that when you attack, you recover SP. Meaning if you recover SP, you don't need GJ to recover from the Steal skill. Also meaning if you have high enough flee, you won't need many healing items (for the exception of the magic attacks). If you don't like the Moonlight Dagger, just use a Weeder Knife and a Wind Dagger of some sort.