During the Great Upheaval, 630 years ago, the Lady declared there would only be 15 factions, and two groups joined together to form the Mercykillers: the Sodkillers and the Sons of Mercy.  The Sons of Mercy (note: title is appropriate regardless of gender of faction member) were a group that believed in justice tempered by mercy for everyone's protection.  During the recent Faction War, with the mysterious disappearance of Factol Nilesia, the two group pulled away from each other again.  The cruel Sodkillers became the Minder's Guild, and the Sons of Mercy decided that someone had to keep the streets safe, especially with the previous guards of Sigil, the Harmonium, packing up to go to Arcadia.  The Sons still run the prison, but try to be fair with all individuals, something not done by their predecessors.  Are they too soft for the job and not willing to get dirty?  Only time will tell.  It should be noted the Sons membership is available to anyone interested (as they aren't a faction), but this prestige class are for the elite of the guard and those that take the creed of merciful justice to heart.
        Hit Dice: d10

Requirements:
        * Alignment: Must be lawful good
        * Base Attack +6
        * Must have the ability to channel positive energy (turn undead)

Class Skills:
        The class skills of the Son of Mercy (with key attribute) are: Craft (Wis), Diplomacy (Cha), Heal (Wis), Jump (Str), Knowledge (local), Listen (Wis), Profession (Int), Search (Int), Sense Motive (Wis), Spot (Wis), and Use Rope (Dex).  Sons of Mercy get 2 + Int modifier skill points per level.
 

Class Features:
        All the following of the Son of Mercy prestige class:

        Weapon and Armor Proficiency:  Characters who take a level of Son of Mercy gain the ability to use all simple and martial weapons, shields, and all armors.
        Discern Lies:  A Son of Mercy may ask one target a question, the answer to the question the Son may know the truth of, as if he cast Discern Lies (DC=15).  The Son of Mercy may do with for one question per day up to his class level.  At 10th level, the Son may use this supernatural ability at will.
        Strike a Blow for Justice:  A 2nd level Son of Mercy may Strike a Blow for Justice.  The Son declares he is making an attack a Blow for Justice before rolling, and gains a bonus to hit equal to his class level.  Striking a Blow for Justice means it does half his class level (round up) + his charisma modifier in extra damage.  Additionally, a Blow for Justice allows that any critical threat that comes from that attack to automatically become a critical hit (no confirmation roll is needed).  This exceptional ability may be used once per day per class level.
        Command:  Once a Son of Mercy reachs 3rd level, he may use command (as a cleric the same caster level as the Son's class level) once per day.  He may use this spell-like ability twice a day when he becomes a 6th level Son of Mercy.
        Brew Truth:  At 4th level, a Son of Mercy gains the Brew Potion feat (regardless of prerequisites) for the purpose of only one potion: Potions of Truth, as described in the Dungeon Masters Guide.
        Shocking Grasp:  At 5th level, a Son of Mercy may cast shocking grasp as a spell-like ability once per day.  It is cast as a sorcerer at the same class level as the Son of Mercy.  (This is usually used to help with a very unruly captive)
        Locate Creature:  A 6th level Son of Mercy can use locate creature (like the spell cast as a cleric of caster level equal to the Son's class level) once per day.  This spell-like ability may only be used to help hunt down a creature who has broken the law and is fleeing.
        Hold Monster:  A 7th level Son of Mercy can use hold monster (like the spell cast as a sorcerer of caster level equal to the Son's class level) once per day.  This spell-like ability may only be used to help hunt down a creature who has broken the law.
        Brew Blood of Justice:  An 8th or higher level Son of Mercy may brew the Blood of Justice.  Any drinker or person cut by a blade coated in the Blood must make both a Will save (DC=20), or begin confessing any crimes the subject has knowledge of doing in the last 24-hours.  Each dose requires 50 GP and 100 XP to make.
        Greater Command:  At 9th level, the Son of Mercy gains the spell-like ability to greater command (like the spell cast by a cleric of the Son's class level) once per day.