Well maybe not ultimate, but I think I've gotten some things tied down for him.
http://www.myth-weavers.com/sheetview.php?sheetid=976296
Why am I using the claws? Well, its a 1d3 on the die, so a 33% chance to trigger max damage for a combat performance check. It is also an exotic weapon so it gets a +2 to the check.
Triggering the performance check, we use hero's display, which gives us a 30 foot "pulse" of intimidation.
With Memorable and Thug's frightening ability, we get at least 3 rounds of shaken if we pass the check. If we break that 4 round barrier, Then we activate the ability to make them frightened instead, lowering the enemies DPR against us.
I've thought about possibly dropping brawler, and instead using Dawnflower Dervish and Martial Master so I could be very mobile.
Anyone have suggestions on this guy? How to improve him or things I might not have thought of?
Right now at level five, he's got a 55% or 45% chance to trigger his hero's display. In two levels, he'll have a slightly higher amount.
Just noticed a new feat in ACG (Disheartening Display) that could be used to some great effect.
Using hero's display first, I could work at making as many I could shakened up for several round then bust out a dazzling display on a later turn to get them all frightened. I could possibly use the thug's ability to select one or two of the baddies only affected for a single turn.
While it isn't the best, http://www.d20pfsrd.com/feats/combat-feats/motivating-display-combat
It could be useful for the guy to boost his allies, by yelling at them.
http://www.d20pfsrd.com/feats/general-feats/ancestral-scorn
This is a possibility if he was tiefling.
Ifrit seems to be one of the best with the ability to add +1/2 his rogue level to demoralize checks.