Just some initial thoughts on some edges....standard disclaimer of crappy names/descriptions, but you should get the idea. Try some non-AP stuff later if I get some positive feedback.

Favored of the Fiends
An anti-paladin with this edge gains resistance (a high resistance) to whatever his weapon might be imbued with via unholy blessing. (Ex.: You have Flames of Ninauruum on your weapon, so you become highly resistant to flame).

Rage of the Fiends
Having curried favor with his unholy allies, an anti-paladin with this edge will notice that the special attacks given to their weapons by the Twelve Fiends of Cocytus will strike all who dare to engage them. (prog'd attacks hit everyone you are fighting).

Unholy Emancipator
Anti-paladins with this edge will receive visions of whoever holds their unholy weapon. Furthermore, whoever dares to hold onto such a weapon will be assailed by the powers contained within, and will find travel slow and tedious. Spells and abilities may also become slightly hampered, and if the anti-paladin comes to reclaim the weapon, woe to the one who bears it, for the weapon will try its hardest to return to its master. (I think this would be a crowd pleaser.)

Rage Caster
Most anti-paladins develop a craving for blood that only an orc could relate to, but some have taken that bloodlust to the next level. While affected by bloodlust, a Rage Caster will go into a kind of frenzy with each successful spell they cast, striking out with renewed rage. Anti-paladins of a chaotic nature can tap into this rage far easier than others.

Example:


(1000hp 1000m 1000mv)
c curse mekantos
Mekantos looks very uncomfortable.

(1000hp 1000m 1000mv)
The site of Mekantos's suffering fills you with insatiable bloodlust!
Your cleave MANGLES Mekantos!


Dirty Tactition
Having long been a student of vile tactics, an anti-paladin with this edge will find that his kicks, knees, elbows, dirt kicks and other more dastardly tactics will be harder for others to avoid, while at the same time he will avoid them with greater ease.

Heartless
A heartless anti-paladin will find that the effects of fear and demoralization are easily shrugged off. Some illusions that depend on evoking great emotion will also be hard-pressed to elicit a response from such a bastard as this. Conversely, effects that inspire, uplift, and otherwise bolster the spirit will be unable to affect him.



More later.

Spirit Slaver
A slaver of spirits is able to call forth a stronger aura of despair. Also as they gain more souls (lifetime collected not in a single weapon) their aura grows stronger and stronger. Effectively their aura fires more often and has a stronger effect.

Deathknight of the Apocolypse
Bonuses to either combat or magic based on the moral of their opponent.

Willbreaker
drowish and duergar anti-paladins are especially known for their cruel manners. The lashes of the slave, face slashes, and crippling strikes of these a-p's are particularily brutal and erode the confidence of those they hit. just add a short -morale effect to lashes, faceslash, and cripling.

Midnight murderer
Some anti-paladins choose to dedicate themselves to fighting more effectively with exotic weapons. With this edge an a-p will be able to use exotic skills much like a warrior with the legacy hour past midnight would but without the boost to melee abilities. This is also mutually exclusive with the edge that lets you ignore offhand penalties for lashes, faceslash, cripling and whatnot.

Soul eater
Sometimes as opponents die their souls are not absorbed into an anti-paladins weapon. A soul eater can reach out with their magic and attempt to feed on the soul as it passes. An anti-paladin can attempt to feed on any soul not already drained by a weapon or protected by the gods from them. The anti-paladin gains the benifits their weapon would have gained but only for a limited time. Maybe a 24 hour timer to prevent people from spam killing the same noob to stack the bonus.

Demonic bonding
While under the bloodlust the anti-paladin is actually transformed to become part-demon. While transformed their physical body is greatly enhanced but there magic becomes significantly weaker. A boost to hp, more str, more damage, better swing affect, more hp regen. As for weakinging the magic side either drop their spell level, either reducing effectiveness by a certain amount, or possibly fail casting do to their demonic jaws and hands kinda like manacles.

Mystic insight
Drow anti-paladins have learned to more finely tune themselves to their auras of despair and the minute changes of energies that occur as living beings pass through it. This greater sensitivity to their surroundings gives them a greater ability to dodge and evade blows. aka drow a-p's have a higher chance in both dodge and evade though not equal to a class that actually learns these skills. could make this edge work for arials too due to their high intelligence.

to take or leave.

Siphon of the mind.

An anti-paladin who has learned to drain the energy of their victims can, if intelligent enough, learn about that victims strengths and weakenesses in combat through draining their energy.

Basically a chance to learn how to hit them more often or defend better against them during combat and the next 24 hours that you encounter them.

-----Abernyte

Or another thought, how about for smart races that energy drain has a chance to steal the actual mana/move and add it to their own?