All the following are class features of the disciple of Dispater prestige class.

Weapon and Armor Proficiency: Disciples of Dispater are proficient with all simple and martial weapons, with all types of armor, and with shields.

Device Lore (Ex): A disciple of Dispater can find traps made mostly of metal just as a rogue can. Furthermore, he gains a +2 competency bonus on Disable Device checks against devices made mostly of metal.

Iron Hews (Su): Once per day per point of Constitution bonus, a 2nd-level disciple of Dispater may add a +3 divine bonus on damage from attacks made that round.

Rusting Grasp (Sp): Once per day, a 3rd-level disciple of Dispater can produce an effect identical to that of the rusting grasp spell cast by a 15th-level caster.

Iron Power (Ex): When using an iron or steel weapon, a 4th-level disciple of Dispater gains a +1 insight bonus on attack and damage rolls. Furthermore, his threat range is doubled as if he were using a keen weapon. At 8th level, the insight bonus improves to +2, and the threat range triples. This ability does not stack with the keen weapon quality, but it does stack with the Improved Critical feat.

Summon Erinyes (Sp): A 5th-level disciple of Dispater can summon 1 erinyes once per day. This functions as a summon monster spell cast by a 15th-level caster. A 9th-level disciple of Dispater can summon 1d4 erinyes once per day.

Greater Iron Hews (Su): Once per day per point of Constitution bonus, a 6th-level disciple of Dispater may add a +6 divine bonus on damage from attacks made that round. While this bonus does not stack with the iron hews ability, the abilities are separate: A disciple of Dispater with a Constitution bonus of +3 can use each ability three times per day.

Ironskin (Sp): Once per day, a 7th-level disciple of Dispater can produce an effect identical to that of the stoneskin spell cast by a 15th-level caster upon himself only.

Iron Body(Sp): Once per day, a 10th-level disciple of Dispater can produce an effect identical to that of an iron body spell cast by an 18th-level caster.