Building a SA archer is nice for the first round, but after that you're unlikely to get much sneak-attack. After six rogue levels you're probably never going to be a "badass artillery piece" (at least with your attack spells), though you'll have some neat trick to tack onto your arrows in that killer surprise round.
If you can get an item of improved invisibility (ideally a wand) that would let you peg people with SA while using your magic arrows.
What level is Swift Invisiblity? You might want that in addition to the wand of Greater Invisiblity. Or maybe go Ninja-Sorcerer....but call yourself a Shadow Stalker if you don't want the Oriental flavor.
Mmmmm.....Oriental flavor......
**drools like Homer**
Don't forget spells like Blur, which can be useful for gaining sneak attack round after round after round. Rogues generally gain sneak attack from two soures, flanking and having some form of concealment on them. You can't get one from a ranged weapon, but your sorcerer levels allow you to gain plenty of the other.
Incidently, if you're going down the sneak attack/spells hybrid road, there are quit a few handy spells, such as Wraithstrike which will help despite poor BAB. Arrowmind is a good one as well, enabling you to get a little more out of your ranged attacks. If you're playing 3.5, spells like Golemstrike can be useful as well. These are the only low-level ones I can think of off the top of my head though.
While your build isn't bad at all I would suggest going Sorcerer 4/ Rogue 3 Arcane Trickster 3.
This would up both your spell casting (CL 7) and sneak attack damage (3d6) while preserving what you are: A rogue spell caster.
For getting that sneak attack damage I would look at spells like Chill touch where you can flank then mirror image so you survive the return fire.
Wraithstrike is very nifty! I play in a game where our primary tank is a kobold battle sorcerer, and being able to claw/claw/bite/tail with touch attacks is very brutal. But I'm not sure if it converts ranged attacks into ranged touch attacks.
I'm assuming you're using Ray of Enfeeblement...the extra sneak attack damage is negative energy damage...right?
One thing I find important when working the sneak attack, at low levels it is in your best interest to remember that Stealth only requires a move action. All you need is cover OR concealment and away you go. Attack from hiding (+2 attack and sneak attack to damage) then move to hide again. You will miss some attacks and some stealth rolls, but it's a good option. Your spells should help you with maintaining cover or concealment. At higher levels it gets more complicated, since you have to give-up attacks to get that Stealth-move in.
Wraithstrike is very nifty! I play in a game where our primary tank is a kobold battle sorcerer, and being able to claw/claw/bite/tail with touch attacks is very brutal. But I'm not sure if it converts ranged attacks into ranged touch attacks.
I'm assuming you're using Ray of Enfeeblement...the extra sneak attack damage is negative energy damage...right?
Ray of Enfeeblement doesn't do HP damage, therefore isn't critical capable in pathfinder so I wouldn't allow it to sneak attack (doesn't do str damage either, it's just a penalty).
I realize there really isn't a 'rule' for it but if one type of precision damage doesn't apply to something I generally don't let other types apply to it either. That's just me and my general view on things, I got nothing official to back it up, other than they are both precision damage, and you can not critical with it.
I'm assuming you're using Ray of Enfeeblement...the extra sneak attack damage is negative energy damage...right?
I'm not 100% percent on this, but I beleive that it says somwhere that only spells which deal direct damage (which excludes ability damage) can be criticalled and subject to precision damage.
No Ray of Enfeeblement Specifically states it imposes a strength penalty and therefore isnt subject to criticals or precision damage.Wraithstrike is very nifty! I play in a game where our primary tank is a kobold battle sorcerer, and being able to claw/claw/bite/tail with touch attacks is very brutal. But I'm not sure if it converts ranged attacks into ranged touch attacks.
I'm assuming you're using Ray of Enfeeblement...the extra sneak attack damage is negative energy damage...right?
I guess that's a litte change from 3.5 that I'll have to keep in mind!