I've had a look through the various Faith books recently (Purity, Corruption, Balance), and one of the cool things in them is the variant paladin/antipaladin codes - the antipaladin of Besmara has a particularly cool one.
I was particularly hoping to find one for an Antipaladin of Asmodeus in Faiths of Corruption, but of course the book predates the Tyrant archetype from Ultimate Intrigue. Which is a shame, because I quite like the idea of a Chelish holy knight who's every bit as dashing as a regular paladin!
So, what would people suggest as something to put on a more formalised code for that sort of character? Personally I think it needs a bit of good old Cheliax patriotism thrown in to kick it off and really drive home the Lawful aspect.
I played a Tyrant of Asmodeus in a recent one-shot. I feel like the code for tyrants worked fairly well, it takes several of the lawful-minded elements from the Paladin's code, but kept the antipaladin's hard-coded ambition and subversiveness. However I tempered it with the hellknight's philosophy towards the superiority of Law above all else, of asmodean priests tendency towards legalistic hair-splitting, and a strong desire to spread the Asmodean faith to all corners of the planet in belief that doing so would return Asmodeus to his rightful position as lord and creator of the multiverse.
Obeying legitimate authority was of absolute importance. In lieu of a present figures authority figures he considered himself rightful master of everything and everyone around him (in the name of Asmodeus of course). He considered himself leader of the party, referred to party members as his minions, took responsibility for their actions, and would have attempted to punish them and/or make decisions for them as well given the opportunity.
That makes sense. Was playing the character as much fun as I kinda expect?
It was really fun. Especially because I don't usually play the leader.
However I must also admit that many of the Antipaladin's class features do not lend themselves especially well to the theme of Asmodean worship. Plague Bringer for example is a wonderfully broken class feature (especially when you carry a Viridium weapon and can pass Leprosy to everybody within 10 ft. of you), but I wish it were Poison Immunity instead. Likewise I really wish he had had an Aura of Law, and could Detect/Smite chaos instead of Good. I considered advancing into Hellknight to get them, however I prefer to get my builds up to concept by 3rd level or earlier since few campaigns start at or reach high enough levels.
Since the archetype is new, I wouldn't look too far for the Antipaladin code for it.
In the Fire Mountain Games release, Way of the Wicked there was an Antipaladin archetype with a small amount of fluff regarding the code. You could draw inspiration from that.
EDIT: They also left the archetype itself pretty barren so it could be compatible with other archetypes. Dread Vanguard is one of my favorites.
However I must also admit that many of the Antipaladin's class features do not lend themselves especially well to the theme of Asmodean worship.
Yeah, I know what you mean on that front. Even in an evil campaign you're more likely to be fighting other evil-types day to day! And while plague-bringer is cool, it doesn't quite fit the mental image. Although...
They also left the archetype itself pretty barren so it could be compatible with other archetypes. Dread Vanguard is one of my favorites.
Fingers crossed for more antipaladin archetypes that swap them out! Dread Vanguard looks really cool, fair play. Loss of spellcasting is big, but then I suppose antipaladins don't get the fun spells anyway. It's got a vibe I could see working with Asmodeus too.
Are there any other books which go into detail on the Church of Asmodeus? I think I've got all the obvious ones, but little gems have a habit of cropping up all over the place.