From Compendium of Worldly Lore
While bear warriors claim the wild ferocity of the bear in their uncontrolled rages, singh ragers draw their furious strength from the noble lion (called a singh or singha in some societies). The singh ragers' fury never robs them of their discipline and control, which to many minds makes them only more terrifying. They are paragons of warrior virtue whose speed, strength, and courage are unrivaled. Fighters and samurai make the best singh ragers, though rangers can easily qualify. Monks and sohei can't qualify before 12th level unless they have some levels in fighter related classes, but some have been known to persevere to that point.
Role: DPS Tank
Characteristics: Noble combatants with controlled rage and fearsome shouts to demoralize foes
Source: Oriental Adventures
Game Rule Information
The Singh Rager has the following game statistics.
Abilities: Charisma for using your Ki shout and Strength and Constitution for the bashy and smashy things that need to get done
Alignment: Any Lawful
Hit Die: d12
Starting Gold: N/A
Class Skills
The Singh Rager's class skills are Climb (Str), Craft (Int), Handle Animal (Cha), Intimidate (Cha), Jump (Str), Knowledge (history) (Int), Listen (Wis), Ride (Dex), Search (Int), Sense Motive (Wis), Spot (Wis), and Swim (Str).
Skill Points at 1st Level: (2 + Int modifier) × 4
Skill Points at Each Additional Level: 2 + Int modifier
Class Features
All of the following are class features of the Singh Rager.
Weapon and Armor Proficiency: A Singh Rager is proficient with all simple and martial weapons, and all armor
Lion's Roar: The singh rager's fury in battle sends fear into her opponents' hearts. A singh rager can use a Ki Shout or Great Ki Shout a number of times per day equal to four plus her Charisma modifier, and the Difficulty Class of the fear effect is increased by 4.
Greater Ki Shout: A singh rager gains Greater Ki Shout for free at 1st level.
Lion's Fury Ex: At 2nd level, a singh rager can enter a state of rage, gaining phenomenal strength and durability but becoming reckless and less able to defend herself. She temporarily gains +4 to Strength, +4 to Constitution, and a +2 morale bonus on Will saves, but suffers a -2 penalty to AC.
The increase in Constitution increases the singh rager's hit points by 2 points per level, but these hit points go away at the end of the rage when the Constitution score drops back to normal. These extra hit points are not lost first the way temporary hit points are. While raging, a singh rager cannot use skills or abilities that require patience and concentration, such as moving silently or casting spells. (The only class skills she can't use while raging are Craft, Iaijutsu Focus, and Sense Motive.) She can use any feat she has except for Expertise, item creation feats, metamagic feats, and Skill Focus (if it's tied to a skill that requires patience or concentration). A fit of rage lasts for 3 rounds, plus the character's (newly improved) Constitution modifier. The singh rager may prematurely end the rage voluntarily. At the end of the rage, the singh rager is fatigued (-2 Strength, -2 Dexterity, can't charge or run) for the duration of that encounter. The singh rager can only fly into a rage once per encounter, and only a certain number of times per day (determined by level). Entering a rage takes no time itself, but the singh rager can only do it during her action, not in response to somebody else's action. A singh rager can't, for example, fly into a rage when struck down by an arrow in order to get the extra hit points from the increased Constitution, although the extra hit points would be of benefit if she had gone into a rage earlier in the round, before the arrow struck.
A singh rager can enter a rage three times per day at 3rd level, four times at 6th level, and five times at 10th level. Starting at 8th level, the singh rager's fury bonuses become +6 to Strength, +6 to Constitution, and a +3 morale bonus on Will saves. (The AC penalty remains at -2.)
Lion's Courage Ex: A singh rager of 3rd level or higher is immune to fear (magical or otherwise) and gains a +4 bonus on Will saves against other mind-influencing spells and effects.
Remain Conscious: A singh rager gains Remain Conscious for free at 3rd level.
Lion's Pounce Ex: At 4th level, a singh rager can make a full attack at the end of a charge.
Roaring Strike Ex: A singh rager of 5th level or higher can make a Ki Shout as a free action if she combines it with a full attack action.
Swiftness of the Lioness Ex: When she reaches 7th level, a singh rager can act as if under the effects of a haste spell for a total of 1 round per class level per day. These rounds need not be consecutive.