jobs? are the final jobs worth using, especially ninja, black belt?

The blackbelt is worth using, as it is a step up from a monk, and a monk may be weak at first, but a monk is also capable of hitting 9999 on monsters at lvl 30-35, and job lvl 50-60. trust me, the blackbelt is definately worth it, and the ninja can throw weapons, doing extra damage from the attack that the weapon says. The strongest throwing weapon for the ninja is the shruiken, and that weapon's attack is 300 i think. due to the ninja's ability, the attack of that weapon will go up 5-10% i think it was. so the attack of the shruiken, the strongest ninja weapon, is ~315-330, which is really good.