So, seeing that all went down with the Shoanti thread (from my DM), I'm looking at going CAGM barbarian, but still with a Shoanti.
So, I've seen a few different ways of building, but this character is possibly gonna be in a Rise of the Crimson Throne game.
I know that Invulnerable Rager is a given. But I was also considering putting in Urban Barbarian too, and I'm wanting to know the pros and cons of that.
Just go human barbarian, Invulnerable Rager, first level feats of Power Attack and Raging Vitality. Urban Barbarian is bad because it removes the Con bonus from raging, and as a CAGM barbarian you need the extra HP sponge since you're going to be inviting so many attacks.
The only benefit I can think of for Urban Barbarian is higher Dex for more AoOs from Combat Reflexes, but it doesn't seem a worthwhile trade for the loss of hit, damage, and HP from not getting Str/Con.
At 1st level, while raging and Power Attacking you'll be swinging at a +6 for 2d6+12 damage per hit, enough to one shot most creatures of your CR on minimum damage rolls.
CAGM barbarian is a pretty simple build.