I'm guessing the U in U-Barbarian is unchained, since you use it for rogue as well.
I'm not sure if you can use Urban barbarian with unchained, maybe someone else can enlighten us, but if you can you pretty much just use dexterity rage and build the way you would any dex based character.
Unchained barbarian makes a pretty good finesse build on its own. As a dex build, you could make two weapon fighting work, but if you can get your strength up to 13 for power attack, then a 2 handed dex build can also do very well.
While the unchained rogue dip is very tempting, it's also a long dip. So, you may just want to use an agile weapon to get dex to damage.
The problem with piranha strike is that it only works on light weapons, so you may as well go two weapon fighting. Also, it's part of a source that you aren't likely to own as a PFS player. So in most cases, you'll want to go for power attack anyway.
I've got a goblin Unchained Rogue / Unchained Barbarian who is a ton of fun to play. The synergy of the new rage works out REALLY well with the Unchained Rogue's dex-to-damage. The enhanced speed helps set up flanking. In all, it works rather well.
Still isn't going to out-damage a strength-based orc barbarian, though but his stealth skill is insane.
If you get 14 Strength on an ECB, you really don't even need Dex-to-damage.
If you get 14 Strength on an ECB, you really don't even need Dex-to-damage.
Maybe not early on, but eventually with bonuses from leveling and gear, your dexterity will be quite a bit higher than your strength. By that point, an agile weapon should be fairly affordable and available.
If you get 14 Strength on an ECB, you really don't even need Dex-to-damage.Maybe not early on, but eventually with bonuses from leveling and gear, your dexterity will be quite a bit higher than your strength. By that point, an agile weapon should be fairly affordable and available.
But think of the opportunity cost: You can probably expect to get a +6 Dex by the end of your PFS career, so an agile ECB would eventually give +3 damage over using 14 Strength. But not going for agile means you can make your ECB keen instead, or make it furious for another +2 while raging. (Granted, there's also some opportunity cost involved in spending the build points to get to 14 Strength instead of 13, but I think on the balance it's still better)
Now, if you're going for the Unchained Rogue anyway, you get 1.5x Dex from that, which changes the math to make it more favorable.
If you're looking at U-Rogue anyway, I'd go with the 3-level dip for the juicy 1.5x Dex-to-damage on the ECB, and stick with just 13 Str.
Urban Barbarian will slightly outclass UC-Barb on damage, and have a big AC boost (no penalty, and +4 Dex), but at the cost of the boost to HP. Since UC-Barb has a much more limited selection of rage powers, I think Urban Barb is better.
I'm not convinced that the claws from Lesser Beast Totem can use DEX to damage, the ability clearly states STR to damage, and I couldn't find a FAQ on it.
No FAQ should be needed:
"Whenever she makes a successful melee attack with the selected weapon, she adds her Dexterity modifier instead of her Strength modifier to the damage roll."The only time dex to damage shouldn't work is when the attack doesn't add strength to damage in the first place.