Ranged enchantress is a normal build. They are quite fun to play.I think a sorc can't kill fast enough with a bow, because she has no attack skills.
Don't get me wrong, you will be able to kill. But you're gonna have to work something out with weapon switching - which I find very annoying to start with. Also, your orb won't be strong. Both fire and cold immunes will typically be killed slowly.
Furthermore, this kind of build always has a typical problem which makes these kinds of characters unsuitable for really levelling into the 90's: your gear setup will have to balance between fighting and casting, thereby impaling optimal use. You will encounter problems finding the right breakpoint to tp at, you will have IAS issues (brand doesn't even offer ias), you will have mana issues, +skills issues... I'd stray away from the idea, TBH![]()
Ranged enchantress is a normal build. They are quite fun to play.
I don't know why one would choose a Brand over Demon Machine though. Piercing is one of the main required properties for this build. You want to maximize the number of explosions per shot.
I built one with the Demon Machine, and it was a solid killer, but a little fragile. (no shield, and, at least in single player, it was hard to get good resists and FHR). Still a fun build.
I agree with stephan that it's all about Pierce (more = better). I would also mention that having a strong prebuff is very, very helpful. If you can combine the two, you'll really mow down the non-Fire Immunes.
http://www.purediablo.com/forums/showthread.php?t=615564
... one more note - I played a couple of melee enchantresses after that one, and I think a Hybrid melee/ranger could actually be a very solid build... because you're fragile, use your ranged attack for monsters that want to engage you in melee, then weapon-switch to a weapon/shield combo and telebomb all of the monsters that want to engage you at range (because they're all more fragile than you are).
... something to consider on how to fight fire immunes (though Frozen Orb is a great choice too).