I was considering how to make a mixed warlock/rogue prestige class.  Would it make sense to continue invocation and eldritch blast damage, lose all other warlock abilities, but gain sneak attack intervals?  was considering requiring hide and move silently requirements.  make it something like a shadow warlock.

http://www.giantitp.com/forums...-warlock-rogue-build has some good ideas for how to multiclass warlock/rogue.  Do warlocks get abilities other than eldritch blast? ;)

Maybe do both but at larger intervals? So, at PrC lvl 1, you might add a 1d6 to Sneak Attack and then, at PrC lvl 3, add a 1d6 to Eldritch Blast and continue to alternate at every odd level? Since it was ruled that Sneak Attack damage applies to targeted damage-dealing rays (which is what the Eldritch Blast is, from a mechanical standpoint), a Sneak Attack Eldritch Blast would progress normally, though the character wouldn't be as good as a regular Sneak Attack at a Rogue nor an Eldritch Blast as a Warlock.

How do you feel about that?
This message was last edited by the user at 17:34, Thu 11 Feb 2016.

I understand what you mean, just not sure if it makes sense from the stand point of being worth it.  You'd be giving up a lot just to make yourself slightly better when sneak attacking, and losing damage otherwise.
  Then again, a normal every other level progression would give them one heck of a punch maxed out, so your idea is probably the most balanced approach.  Maybe it's just too wonky to combine the two.

Remember that my suggestion was only addressing how I feel the SA and EB should progress in a Rogue/Warlock-themed PrC. This is not including any additional abilities you wish to add. Now I want to go home and actually write out what a PrC like this might look like. Haha

it's hard, because I think the warlock is underpowered to begin with.  It has a cool concept and some cool abilities, just not enough of them.  So trying to come up with a PRc that is balanced is a bit skewed, since I think thy need to be made a bit more powerful anyway.

Well if the class progressed casting, and added sneak attack, you're looking at already adding eldritch blast. If you ALSO added more eldritch blast, you're looking at eldritch blast above what a normal warlock would have. So if that blast was keyed to sneak attacks with eldritch blast, you'd be looking at normal warlock (or a few casting levels behind) with much attack added when sneak attacking (which such a character will need as they're no longer benefiting from some of the things that help rogues (two weapon fighting), and will have abysmal attack bonus from the multiclassing.

Look to Arcane Trickster for an idea on casting and sneak attack increase

not sure what you're saying.  If I take away eldritch blast, and give sneak attack, that really seems like a poor trade off that wouldn't really be worth it.  But if I give both, it seems too powerful.  I get that arcane trickster, or unseen seer, are good caster/rogue mixes, but losing your eldritch blast increase to gain sneak attack doesn't make a lot of sense.  Just keep progressing as warlock, and your increased damage will be usable in more situations.

I guess to me, it only really makes sense to PrC away from warlock if you keep both invocation and eldritch blast progression.

In reply to gladiusdei (msg # 8):

Okay but is your class advancing spellcasting? In this case invocation level, like hellfire warlock or eldritch theurge? If so, it's ALREADY advancing eldritch blast

I'm not sure that's right, the prestige classes in the book, like eldritch theurge, list eldritch blast damage increases separate from invocation advancement.

wait, I think you're right.  That's interesting, I hadn't noticed that.  I had looked at the class demonbinder in the Drow of the Underdark book, which expressly says that your eldritch blast doesn't get more damage as you progress.  But it lists as additional invocations known, not +1 level of spellcasting.  So it's different wording.  I suppose that opens up new possibilities for my character, then.

which means if he had 1 level of rogue, then warlock, then something like unseen seer or arcane trickster, then he WOULD get an increase in both eldritch blast and sneak attack over time, right?

I guess they'd have to meet the casting requirements first.  Sigh, wish there were more PrCs out there for warlock.

how about a PrC that continues invocations and eldritch blast, but limits invocations to those related to shadow and darkness, maybe adds 1 or 2 dice of sneak attack, and takes away the other special abilities?  Possibly adding in a few other special abilities that are shadow related.

My feelings exactly.  The rules already allow for a warlock/rogue multiclass type with eldritch blast and sneak attack and you don't have to invent house rules to do it.

But don't let that stop you if you want.  Go for it. :)