All of the following are class features of the thrall of Orcus prestige class.

Weapon and Armor Proficiency: A thrall of Orcus is proficient with all simple and martial weapons, with all types of armor, and with shields.

Bonus Feat or Spells: When a thrall of Orcus attains 1st, 4th, 7th, and 10th level, the character gains new spells per day as if she had also gained a level in whatever spellcasting class she belonged to before she added the prestige class, or else she gains a bonus feat of her choice. if the thrall choses +1 spellcasting level, she does not gain any other benefit a character of that class would have gained (improved chance of controlling or rebuking undead, metamagic or item creation feats, hit points beyond those received from the prestige class, and so on), except for an increased effective level of spellcasting. This essentially means that she adds the new level to the level of whatever other spellcasting class the character has, then determines spells per day, spells known, and caster levels accordingly. If a character has more than one spellcasting class before she became a thrall of Orcus, she must decide to which class she adds the level for purposes of determining spells per day.

A thrall of Orcus is free to choose the bonus feat at one opportunity and the spellcasting level the next time the decision arises, or vice verse. Characters who are not spellcasters must choose the bonus feat.

Carrion Stench (Ex): a thrall of Orcus, when desired, emites a terrible smell in a 10-foot radius. Living creatures in the radius (excluding the thrall) must succeed on a Fortitude save (DC 10 + thrall's class level + thrall's Con modifier) or take a -2 penalty on all attack rolls, weapon damage rolls, saving throws, skill checks, and ability checks for 1 round per class level of the thrall of Orcus. Furthermore, mindless undead creatures within the radius of the stench believe the thrall of Orcus to be undead.

Touch of Fear (Sp): Three times per day, a 3rd-level thrall of Orcus can produce an effect identical to that of the cause fear spell cast by a 10th-level caster.

Demon Wings (Su): Once per day, a 3rd-level thrall of Orcus can bring forth massive black wings from his back. These wings allow the thrall to fly at his normal land speed with average maneuverability. The demon wings last for up to 1 hour and are dismissible with a standard action. At 7th level, the thrall can use his demon wings at will, and the last as long as needed.

Massive Girth/Skeletal Visage (Su): At 4th level, a thrall of Orcus must chose to become obese like her dread master or gaunt like an undead creature. Depending on the choice, the thrall gains the Deformity (summo) or Deformity (obese) as a bonus feat.

Summon Undead(Sp): Once per day, a 5th-level thrall of Orcus can summon 1d4 ghouls, 1d3 shadows, 1 wight, or 1 wrath as the gaunthref="?sp=2774">alten monster cast be a caster of her class level. at 9th level, the thrall can summon 1d3 mummies, 1 spectre, 1 mohrg, 1 vampire, or 1 ghost instead. if she choses a vampire or a ghost, its character level is one less than the thrall's class level.

Pallor of Death (Su): a 6th-level thrall of Orcus can adopt the appearance of a humanoid undead creature of her choosing as if she had cast the fear spell. while in this form, the thrall as an aura of fear (as the summo> spell cast by a 6th-level caster) that affects only living nonoutsiders within 25 feet. Pallor of death lasts for 1 minute per class level and can be used once per day.

Death Touch(Sp): An 8th-level thrall of Orcus can adopt the force a living creature hit with a touch attack to attempt a Fortitude save (DC 10 + thrall's class level Thrall's Cha bonus). If the target fails. it dies.

Summon Nightwing (Sp): A 10-th level thrall of Orcus can summon 1 nightwing once per week, as the spell cast byt a 15th-level caster.