Oh Gawd.. PrCs are going to be PAINFUL to write up and post. I'm going to cry.
Brute
Okay, a few notes. For PrCs, I expect them to be balanced according to the guiding principles laid out by WotC. The Brute, as originally written, was not balanced in line with that, so I nerfed the tar out of it. The monster written up below is STILL overly powerful in his chosen field, but he is also balanced in line with D&D and this game in particular.
In particular, I dropped about 6 extra feats that the Brute got other than that listed below, and nerfed Relentless Assault (which was originally non-resistable) and Batter Foe (which originally DOUBLED subdual damage).
Anyway, consider this a case study.
Prereqs: BAB +7 or higher, Intimidate 5 ranks, Power Attack, Toughness.
HD: d10.
BAB: as Fighter.
Saves: as Fighter.
Class Skills: Climb (STR), Craft (INT), Intimidate (CHR), Jump (STR), Ride (DEX), Swim (STR).
Skill Points at Each Level: 2 + INT modifier.
Proficiency: as Fighter.
Abilities by level:
1 - Improved Power Attack
3 - Shield Breaker
5 - Relentless Assault
6 - Onslaught
8 - Batter Steel
9 - Batter Foe
10 - Brutal Assault
These are summarized. Please let me know if you need more detail, but they seem reasonably simple to me right now.
Improved Power Attack: As per Power Attack, but the damage bonus is doubled (if you reduce your attack by -5 to hit, you get +10 to damage).
Shield Breaker: If an opponent's AC is improved by a shield or expertise, and the Brute misses by an amount equal to or less than the bonus from the shield or expertise (NOT COUNTING MAGICAL BONUSES, such as +1 on a shield, or a defending weapon), the Brute does his damage to the shield or expertise weapon instead (all hardness rules, etc., apply normally).
Relentless Assault: When ever the Brute uses Power Attack or Improved Power Attack, he gets a free, immediate Bull Rush (does not provoke an Attack of Opportunity) against that opponent. If he successfully pushes the opponent back, he automatically takes a 5 foot step in the direction the opponent was shoved. The Brute may not move further than his basic move in this way.
Onslaught: The Brute may take twice the normal maximum penalty in conjunction with Power Attack and Improved Power Attack. Thus, if he has a BAB of +11, he can take up to a -22 to hit, for +44 to damage.
Batter Steel: Damage against inanimate objects with a hardness rating is doubled.
Batter Foe: The Brute may choose to do subdual damage for no penalty to hit (normally the penalty is -4).
Brutal Assault: This works like Shield Breaker, but now applies to armor as well.