Fiends
A righteous sentinel who makes a covenant against demons, devils, daemons, and other evil outsiders is constantly on the hunt for malevolent fiendish incursions into the world. Should fiends gain entrance into the Material plane, the righteous sentinel has vowed to hunt them down and either banish them to their plane of origin, or destroy them utterly.
Skills: The righteous sentinel with the covenant against fiends adds Knowledge (planes) (Int) to his list of class skills. In addition, whenever a righteous sentinel with a covenant against fiends uses Knowledge (planes) to identify or gain information about fiends, he receives a bonus on the check equal to 1/2 his righteous sentinel level (minimum +1).
Covenant Powers: A righteous sentinel with the covenant against fiends gains the following abilities as he increases in level.
Unyielding Stalker (Ex): At 2nd level, the righteous sentinel gains the scent ability to locate unseen fiends (see the Special Abilities section in the Pathfinder RPG Bestiary for rules on the scent ability). The righteous sentinel adds 1/2 his level to all Survival checks made to locate fiends by scent and on Perception checks to pinpoint the location of fiends he cannot see. If he pinpoints the location of a fiend that has total concealment, he treats it as having concealment.
Anchoring Aura (Su): At 8th level, the righteous sentinel emits an aura that hampers extradimensional travel by evil outsiders. The aura extends 20 feet from the righteous sentinel. Evil outsiders attempting to use abilities such as dimension door, plane shift, or teleport to leave or enter the aura must succeed at a Will save (DC 10 + 1/2 the righteous sentinel’s level + the righteous sentinel’s Charisma modifier); failure means the ability does not function, as if the outsider were affected by dimensional anchor. The aura functions only while the righteous sentinel is conscious, not if he is unconscious or dead.
Alternatively, as an immediate action, the righteous sentinel can expend one use of his avenging smite ability to target an evil outsider within 30 feet with dimensional anchor. A targeted dimensional anchor persists even if the righteous sentinel is unconscious or dead.
Celestial Resilience (Su): At 14th level, a righteous sentinel gains DR 5/evil against evil outsiders. He also gains resistance to cold 10 and fire 10 for a number of rounds per day equal to his righteous sentinel level + the righteous sentinel’s Charisma modifier. These rounds need not be consecutive.
Fiend Hunter (Su): At 20th level, a righteous sentinel becomes the true bane of fiends. His DR increases to 10/evil and his resistance to cold and fire each increase to 20. Whenever he uses avenging smite and successfully strikes a fiend (daemon, demon, or devil), the fiend is also subject to a single-target holy word, using his righteous sentinel level as the caster level. After the banishment effect and the damage from the attack are resolved, the avenging smite immediately ends.
Righteous Bond: The righteous sentinel can add the allying*, anarchic, axiomatic, bane (daemon, demon, devil), defending, holy, huntsman*, keen, shock, shocking burst, speed, and thundering special weapon properties to his bonded weapon. Alternately, the righteous sentinel adds the celestial template to his bonded companion at 11th level. (*Advanced Player’s Guide)
Covenant Spells: The righteous sentinel adds the following spells to his spell list: 1st level–bless weapon, challenge evil*, divine favor, protection from evil; 2nd level–blessing of courage and life*, fire of entanglement*, vestment of the champion‡; 3rd level–archon’s aura‡, dismissal, fire of judgment*, magic circle against evil, righteous vigor*; 4th level–banishment, fire of vengeance*, holy sword, planar ally (lesser). (*Advanced Player's Guide, ‡Ultimate Magic)
Code of Conduct: Never suffer an evil outsider to live if it is in your power to destroy it. Banish fiends you cannot kill. Purge the evil from those possessed by fiends.