to answer the original post if the OP is still interested, the tough part is both TA and Master of Disguises want a full 5 levels and TA is a bit feat intensive. For a Human or Tiefling you have 8 (or 7) pre-epic feats. Human will make pre-epics easier/faster to get your feat requirements while also the standard needed feats for a rogue while Tiefling will make epics less an issue with regard to qualifying for PTWF and Epic Dodge. So let's look at what is needed for a Rogue build that includes both TA and MoD:
TA needs Evasion (rogue 2), Dash (required feat), and SF: Tumble or Escape Artist (Escape Artist is the better mechanical choice). You also need Tumble and Escape Artist, 10 ranks. Thus the earliest level you can take Thief Acrobat is level 8.
MoD is much easier only requiring bluff, disguise and sense motive of 5 ranks and BaB of +5.
In addition to the above, for your build in pre-epics you must take Weapon Finesse, TWF, ITWF, and Greater TWF. Thus 6 feats are spoken for, your Tiefling has 1 left and your human has 2. In addition, depending on rogue levels and what other PRC (if any) you pick up you may have other available feats. Assuming you have at least 13 Rogue levels R10 will take crippling strike and rogue 13 will take Defensive Roll (you get Improved Evasion free from TA).
So, you don't want Assassin, you have to decide if you want HiPS. If you do want HiPS you are stuck with Shadow Dancer for you 4th class and you need Dodge and Mobility feats. This would be something like R17/SD3/TA5/MoD5 and the biggest issue you will have is a severe lack of damage. You will only have 11d6 sneak dice (ouch) since all SD and TA have zero sneak progression and MoD only gets 2/5 instead of 3/5. With regard to BAB it's ok (thanks to TA getting high BAB progression) so you are 22 which is standard for a Rogue, though in general with 22 BAB you would want 14d6 or more sneak dice so you're a bit behind as stated. If you go with this build you'll have to go Human (remember your level 18 feat cannot be used for PRC qualification due to 3b20) and won't get GTWF until level 18 or if you go Tiefling you will have to also use your R10 feat for qualification and R13 and 16 for Crippling Strike/Defensive Roll (one of which could otherwise by an epic feat). Finally, to get Epic Dodge you need to take R16 on or before level 29 which is fine since then level 30 would be R17.
For a non-HiPS build you have to understand how Hide in the Shadows (rogue custom ability) and determine what is acceptable to you. Recommend you read up on it
here. It does take some practice, but I actually really like the mechanic as it requires you to think about positioning etc. If you do go this route, note that Rogue 16-20 has a 1s delay to hide in the shadows (becomes instant at 21). Since you have 10 levels spoken for you only need 16 levels of Rogue to get your best use out of HitS giving you 4 levels to dedicate to another PRC. Here are a few options:
R17/NWN3/TA5/MoD5 - Obvious choice. Whenever possible Bodyguard should be looked at in any rogue build. Here you end up with 13d6 sneak dice and BAB 23 as well as 10% movement speed boost (which in conjunction with Dash helps you gain distance to better use HitS or corners so you can stealth. Saves feats of ShadowDancer in addition to more sneak dice, +1 BAB and movements speed, but obviously one can't ever do enough to validate the loss of HiPS.
R16/GT4/TA5/MoD5- Gains a couple of feats, though I recommend you build in NWN2db or JEGS before playing it as Guild Thief feat selection is exceedingly limited, but you could grab Combat Expertise/Feint as another way to land sneak attacks (though on the surface this is a dubious choice at best.)
Alternate style....(not what you requested)
R16/BG4/TA5/MoD5 - Blackguard synergizes well with Master of Disguises. This build would go for Shield Slam rather than PTWF and thus would focus on STR/CHA going for an EDM with Improved Knockdown, Springboard, Shield Slam and Blinding Strike. More about disables without reliance on HiPS. Will wear Mithril Chainmail (14 DEX with +4 DEX bracers) and use a medium shield and longsword or scimitar (or whatever martial/medium weapon you want). Basically instead of 25 DEX you are aiming for 21 STR/CHA so Human will work better than Tiefling, especially due to heavy feat pre-requisites.
Again, not sure the original poster is still interested in this concept or has already started playing it with a different split, but figured since it was necro'd I'd provide what advice I'm able.
Tacticus001 wrote: ↑Sun Apr 14, 2019 8:38 pm
Me personally i prefer to play as a thief in most D&D games I've done. Maybe consider multiclassing into a fighter. If you want to focus on a mostly rogue type I'd recommend 3 levels of fighter before level 20 (3b20) and also take the 4th level fighter in your epic levels for the bonus feat to get an epic feat. The reason I am saying take some fighter levels is because the rogue only gets a medium BAB (base attack bonus) which in my opinion sucks, by taking a few fighter levels levels you can get a +4 to your BAB. It is so annoying to miss your sneak attacks when your big fighter is depending on you to take the target down fast.
No offense, but this isn't a great idea unless you are going for a very specific build. I have played a Sneak attack based PC as my main for the majority of my 4 1/2 years on the server as well as in various editions of PnP over the years and rogue BAB is just FINE as long as you do what you are SUPPOSED to do, which is to attack enemies which you can deny their DEX/Dodge AC and apply sneak damage. 4 levels in a high BAB class (or 3 levels) will gain you exactly 1 BAB while losing you 2d6 sneak dice. If you want to do this it is far better to grab 3 levels of Bodyguard (Neverwinter Nine) which gains the same +1 BAB while still giving full sneak attack progression (2d6 for 3 levels). If for some reason you notice your rogue missing sneak attacks out of stealth/when opponent is flanked try potions of (greater) heroism, bless or aid. far better option than losing damage on your sneak attacks.
If you are going for a "Fighter/Thief" hybrid then it's best to go R16/F14 (shield slam), R11/GFK10/A9 (PTWF or Shield Slam) or some other combo that fits in more of the high BAB classes. R10/BG10/GFK10 is another possibility or you could do similar with wilderness stalker.
While Rogue builds are feat starved, they have enough to get what they need without Fighter, and a key point is saving Fighter for Epics isn't all that great most of the time, there are only two epic feats that you can take there, though in this case you could use it for Epic Prowess which is needed for expose weakness. Still, there are better options in terms of spending your levels on.