I'm playing an evil campaign and I'm running an anti-paladin. For a lot of the paladin-themed feats it's a pretty simple conversion. The Ultimate Mercy feat doesn't fit very well with the anti-paladin though.
Here's my attempt at making the anti-paladin version. I'm posting it here to get feedback on how balanced it is.
Ultimate Mockery:
By using touch of corruption, you can bring the dead back to a mockery of life.
Prerequisites: Cha 19, Greater Mercy, 10 uses/day of touch of corruption, cruelty class feature.
You can spend a number of touch of corruption uses equal to the hit dice a dead creature had to raise it as an undead mockery of what it was in life. The corpse must be mostly intact as the raise dead spell. You must provide the material component for create undead or choose to accept 1 temporary negative level; this level automatically goes away after 24 hours, never becomes a permanent negative level, and cannot be overcome in any way except by waiting for the duration to expire.
Type: The creature's type changes to undead. It retains any subtype except for alignment subtypes (such as good) and subtypes that indicate kind (such as giant). It does not gain the augmented subtype. It uses all the base creature's statistics and special abilities except as noted here.
The creature gains all undead traits.
Abilities: A creature so raised has no Con score, but other abilities remain unchanged. It uses Cha for bonus hit points and fortitude saves instead of con.
What happens to the soul: The soul of the creature has the option to return if ultimate mockery is cast within 1 day per anti-paladin level of the creature's death. If it refuses, then it gets a will save with a DC equal to half the anti-paladin's level plus cha modifier, minus the number of days it has been dead for. If the soul of the slain creature is imprisoned in a soul gem or similarly under the control of the anti-paladin it does not get a choice and is transferred into the newly raised undead.
If the soul returns, the undead created has the int and wisdom it had in life. If not, it has no int score and a wisdom of 10.
Control: The newly raised undead is not under any special control by the caster and is either mindless or free willed depending on the status of the soul. However the process of raising it may be delayed to attempt once to add another form of control such as the control undead feat as it is being raised.
Adjusting to un-life: A raised creature's alignment will slowly change to evil over the next 1d20 weeks, (law/chaos axis remains unchanged.) If uncontrolled and free-willed, being raised into an undead shell can be quite a change. Crusaders of good often find themselves resenting their new form and are frequently drawn to revenge against both the one who raised them and their killer. Often becoming anti-paladins themselves after a fall caused by a chain of revenge. Evil creatures often have no problem with their new form and may even seek undeath out, (although usually in a form with more turn resistance and defensive powers than ultimate mockery gives.)
