Withering Strike (Su) Anytime a wither skeleton succeeds in dealing damage with a melee attack the target must make a DC 15 will save. The DC is charisma based. If the creature fails, is inflicted with withering for a number of rounds equal to the wither skeleton's charisma modifier. Withering is a curse effect inflicted by wither skeletons and the wither that drains the life of the creature. Every round, a creature with withering takes 1d3 points of strength, dexterity, and constitution damage. A creature that dies from constitution damage due to withering cannot be raised by most means as though they died to a death effect. Any ability damage from withering that is not restored within 24 hours becomes ability drain. Undead afflicted with withering take 1 point of charisma damage each round instead. Wish, remove curse, and similar spells that can dispel curses can end the withering effect. If the spell is cast within 24 hours of the withering effect after it has ended it instead removes all ability damage from the withering effect.

Hellfire Missile (Su) All projectiles fired by a wither skeleton burst into flame and deal an additional 4d6 points of damage. Half of this extra damage is fire while the other half results directly from unholy power and ignores all resistance and immunity. Additionally, any creature that takes at least 1 point of fire damage from this ability is automatically lit of fire.