Frenzied Berserker enhancements (history)

Overview
''Unlike most other characters, they do not fight to achieve a heroic goal or defeat a loathsome villain. Those are mere excuses -- it is the thrill of combat that draws them. For the frenzied berserker, the insanity of battle is like an addictive drug -- they must constantly seek out more conflict to feed their craving for battle.''

Barbarian Frenzied Berserker I

 * Prerequisites: Level 6 Barbarian, Power Attack, Cleave, Barbarian Damage Boost II, Barbarian Power Attack I, Barbarian Power Rage I.
 * Cost: 4 Action Points
 * Benefit: You gain the effects of the diehard feat while raging, and your glancing blows have a chance of applying magical weapon effects. You also gain the ability to expend 10 hit points to enter a frenzy, which increases your strength by 2 and adds the 'Vicious' property to your melee weapons.

Barbarian Frenzied Berserker II

 * Prerequisites: Level 12 Barbarian, Barbarian Frenzied Berserker 1, Barbarian Damage Boost III, Barbarian Power Attack II, Barbarian Power Rage II.
 * Cost: 2 Action Points
 * Benefit: While raging, increases the critical multiplier of all weapons you use by 1 when you roll a natural 19 or 20. Your two handed weapon glancing blows have an increased chance of applying magical weapon effects. You also gain the ability to expend 10 hp to Supreme Cleave.

Frenzied Berserker Supreme Cleave
Benefit: Expend 10 hit points to attack all nearby enemies.

Barbarian Frenzied Berserker III

 * Prerequisites: Level 18 Barbarian, Barbarian Frenzied Berserker 2, Barbarian Damage Boost IV, Barbarian Power Attack III, Barbarian Power Rage III.
 * Cost: 2 Action Points
 * Benefit: While raging, increases the critical multiplier of all weapons you use by an additional 1 when you roll a natural 19 or 20, bringing the total bonus to 2. Your two handed weapon glancing blows have an increased chance of applying magical weapon effects. You also gain the ability to expend 20 hit points to enter a death frenzy (which can stack with your basic rage and frenzy), increasing your strength by 4 and adding the 'Greater Vicious' property to your melee weapons. (+4d6 damage / +1d3 damage to self)