Favored Enemy (Ex)

At 1st level, a demonslayer must choose favored enemy (evil outsider). At 5th level and every time he advances his favored enemy bonus, the demonslayer must advance his bonus against evil outsiders. In addition to the normal benefits of favored enemy, a demonslayer gains a bonus equal to 1/2 his favored enemy bonus on saving throws against spells, spell-like abilities, and supernatural abilities of evil outsiders.

This ability is otherwise identical to and replaces the favored enemy ranger class ability.

Demonologist (Ex)

At 3rd level, a demonslayer gains insight into his Abyssal enemies. The demonslayer gains a bonus equal to 1/2 his class level on Knowledge (planes) checks that relate to demons, Perception checks to pierce a demon's disguise, and Survival checks while tracking demons. This bonus stacks with any bonuses from favored enemy.

This ability replaces endurance.

Expanded Spell List

A demonslayer adds the following spells to his spell list: 1st—protection from evil; 2nd—align weapon, magic circle against evil; 4th—dimensional anchor, dismissal.

Fiendish Quarry (Su)

At 11th level, when a demonslayer chooses an evil outsider as his quarry, he can the forgo the normal +2 attack bonus and instead treat his weapon as if it were good-aligned versus his quarry. This ability is otherwise identical to quarry and replaces that ability.

Improved Fiendish Quarry (Su)

At 19th level, when a demonslayer chooses an evil outsider as his quarry, he can forgo the normal +4 attack bonus and instead treat his weapon as if it had the holy weapon special ability while attacking his quarry. This ability is otherwise identical to improved quarry and replaces that ability.