Samurai Orders
The following orders can be chosen by both samurai and cavaliers, although the former are far more likely to do so. Samurai can also select any of the cavalier orders presented in the Pathfinder RPG Advanced Player's Guide.
Most samurai swear themselves to the code of the warrior, which emphasizes duty, honor, loyalty, and obedience. This code extends not only to the samurai's lord and master, but also to his comrades and family. Samurai who follow the order of the warrior are among the most trusted and feared warriors in the land.
Edicts
The samurai must protect the life and lands of his lord with his life. He must be truthful and courageous, respectful to his elders and his masters, and loyal to his friends and liege. He must conduct himself with honor and dignity.
Whenever an order of the warrior samurai declares a challenge, he receives damage reduction 1/— against attacks made by the target of his challenge. This DR increases by +1 for every four levels the samurai possesses.
Skills
An order of the warrior samurai adds Knowledge (history) (Int) and Knowledge (nobility) (Int) to his list of class skills. An order of the warrior samurai can make Knowledge (nobility) checks untrained. If he has ranks in the skill, he receives a bonus on the check equal to 1/2 his samurai level (minimum +1) as long as the check involves the nobles or politics of his land.
A samurai who belongs to the order of the warrior gains the following abilities as he increases in level.
Honor in All Things At 2nd level, the order of the warrior samurai draws strength from his sense of honor. Whenever the samurai makes a skill check or saving throw, he can call upon his honor as a free action to grant him a +4 morale bonus on the roll. He can use this ability once per day at 2nd level, plus one additional time per day for every four levels beyond 2nd (maximum of five times per day at 18th level).
Way of the Samurai (Ex): At 8th level, the order of the warrior samurai's sense of honor and loyalty drives him to accomplish seemingly impossible tasks. The samurai can, as a standard action, focus his mind and will. Once during the next minute, he can choose to roll an attack roll, skill check, or saving throw three times and take the best result. He must decide to use this ability before the roll is made. Using this ability expends one daily use of his resolve.
Strike True (Ex): At 15th level, the order of the warrior samurai can use his years of training and focus to make the perfect strike. When he uses this ability, the samurai makes an attack as normal. If the attack hits, it is a critical threat. The samurai must roll to confirm the critical as normal. The attack deals the maximum amount of damage, although additional dice from weapon qualities, sneak attack, and additional dice from a critical hit are rolled normally. The damage from this attack ignores any damage reduction the target might have and also causes the target to become blinded, deafened, sickened, or staggered for 1d4 rounds (the samurai's choice). Making this attack is a standard action. The samurai can use this ability once per day.
Ronin
While most samurai belong to the order of the warrior, dedicating their considerable skills to the service of a lord, land, and people, some find themselves without a master, either as a result of disgrace or death, or occasionally by choice. Known as ronin, these samurai wander the lands, serving their own code of ideals. While ronin are significantly freer to do as they please, they do not receive the same respect and support that a more dedicated samurai can count on. Note that cavaliers can select this order, but they are typically called knights errant instead of ronin.
Becoming Ronin
Normally, when a samurai wishes to change his order, he must undergo a lengthy process that requires him to adhere to the edicts of his new order for a period of time before receiving any benefits. This is not the case with ronin. Once a samurai decides to become a ronin, he immediately loses all of the bonuses, skills, and abilities of his old order and gains those of the ronin order. If he wishes to once again dedicate himself to another order, he must do so using the normal rules.
Edicts
Ronin follow their own personal code of ethics and honor. As such, their edicts are extremely flexible and subject to change. Each ronin should determine his own edicts, which should include at least three provisions. These edicts are subject to GM approval.
Whenever a ronin is the target of a challenge, a smite, a quarry, or similar effect, and he issues a challenge against that character in return, the ronin receives a +1 morale bonus on attack rolls made against the target of his challenge and a +1 dodge bonus to his AC against attacks made by the target of his challenge. These bonuses increase by +1 for every four class levels the samurai possesses (to a maximum of +6 at 20th level).
Skills
A ronin adds Knowledge (local) (Int) and Survival (Wis) to his list of class skills.
A ronin samurai gains the following abilities as he increases in level.
Self Reliant At 2nd level, the ronin learns to rely solely on himself, even in the most difficult of times. Whenever the ronin fails a Will saving throw against an effect with a duration greater than 1 round, he can attempt another saving throw at the end of the second round of the effect. If he makes this saving throw, it has the same effect as if he had made the original save (negating part or all of the effect). In addition, whenever a ronin is brought below 0 hit points, on his next turn he can roll twice to stabilize, taking the better result.
Without Master (Ex): At 8th level, the ronin's fierce independence allows him to overcome staggering odds. The ronin can summon up this willpower as an immediate action, and can use it in one of three ways. He can use his willpower whenever an attack would reduce him to fewer than 0 hit points but wouldn't kill him, to instead be at 1 hit point and conscious. He can use his willpower after making an attack roll to confirm a critical hit in order to reroll the confirmation roll. Finally, he can use his willpower to take 10 on a skill check during combat, even if the situation or the skill would not normally allow him to take 10. A ronin can use this ability once during a combat.
Chosen Destiny (Ex): At 15th level, the ronin is the master of his own destiny. Whenever the ronin makes a saving throw against a charm or compulsion effect, he may roll twice and take the better result. In addition, once per day, the ronin can treat any one d20 roll as if the result were a natural 20. He must declare the use of this ability before the roll is made.