This is more a continuation of discussion on making the Ettercap Berserker feat work on as many rages as possible and maybe getting as many rages at the same time as possible.
Due to the way Ettercap Berserker is worded, it does not increase constitution bonuses during a rage but sets them to a specific bonus. Normal rages effectively get a +2 to their constitution bonus. Berserker Strength, rather, gets to provide either a +6 or a +8 constitution bonus while berserking. Whirling Frenzy gets the same bonus, but does not allow for other types of rages to be done at the same time.
But anyways; to add to the rage power, there is the Chaos Rage feat out of Dragon #326. The feat is effectively Practiced Spellcaster rages, giving a +4 to your effective barbarian level for determining your rage ability. I'm working under the impression that this would increase the effective barbarian level for the purposes of determining the strength and trigger of the Berserker Strength ACF.
Raging Monk is probably the best way to get an easy rage that stacks with barbarian levels. Since the monk raging doesn't take a way from feats, and due to the way the monk gets feats, this can also be a Martial Monk for free fighter bonus feats (namely an easy Shock Trooper).
On the barbarian side; we have berserker strength, lion totem, and I'll add in city brawler and the feat given through Sandstorm to punch things a lot and get into Fist of the Forest easy (I feel like making this build a barbarian that punches things, too).
Raging Martial Monk 1/Berserker Strength Barbarian 5/Fist of the Forest 3/Barbarian +11
Flaw Battle Jump
Flaw Iron Legs
1 Power Attack
Monk Shock Trooper
3 Ettercap Berserker
6 Leap Attack
Barb Great Fortitude
9 Chaos Rage
12 Open
15 Open
18 Open
Aside from Ettercap Berserker, Chaos Rage, and Great Fortitude; the rest of the feats really just add to damage (not that that's a bad thing). There is a fair amount of room to play around and add things in terms of feats, race, and abilities. The first level of Fist of the Forest is of the greatest benefit for the build, so two other levels of classes can be fit into here.
As is, the guy gets
-BAB 19
-Greater Rage 6/day
-20th level Berserker Strength (+8 strength, +8 constitution, DR 4/-, +4 to all saves, +2 to saving throws against poison when below 100 hp)
-1d10 unarmed strike
-7 hits in a full attack with his unarmed strike
-double strength damage with all unarmed strikes (as long as they're made with the legs)
-double his Power attack penalty to his unarmed strike on a charge
-bite attack
-pouncing shocktrooper goodness
Anyway, continue discussing ways to rage harder... or at least reasonable ways of dealing with the superposition of a berserking/non-berserking barbarian due to constant CON changing.
