Need to choose a class

Psst, archers are expensive too! Perhaps not as expensive as sins but they're still pretty expensive these days. Additionally, archers dont really train slower. Its just a matter of knowing where and how to train.

I don't see how archers are expensive. They can pretty much shoot farther from a monster's range, which means they won't get hit. (Puppet anyone? Stun much?)

In training, venom helps and makes them act like f/p mages.

There's a HUGE difference between venom and mist.
Venom can be viewed as quick poison. A Night Lord fires a star, and there's a few seconds of some damage that's definitely higher than 1/40th of a monster's hp. When a NL fires a star again, that damage is doubled, duration reset. Maxed, the venom will stay for 4 seconds. (What I don't get though is why NLs don't venom a monster, venom another monster, and then kill the first monster instead of just firing stars at the first mosnters until it's dead. Seems like a waste of stars to me.)
Poison mist is always the definite 1/40th monster's HP for 40 seconds. Their usage is completely different, as is their effects. So yea, just differentiating between the two. xD

I actually suggest making an assasin. You'll do much more damage and be able to go to boss runs. However, if you like to be a rare class, then make a crossbowman.