Huh. I guess I never went up against a Luminitiate in a negotiation. They tend to show up as backup to someone else instead of the upfront negotiator.
I'll let you know if I come up with anything else.

Thanks for the suggestions! Though, the Cult Luminitiate already has unique behavior (most classes introduced for Smith's campaign do).

(continuation)
- Cult Luminari: when one of their arguments is destroyed, all other arguments gain a small amount of Composure.
- Civilian Heavy Laborer: they gain a great amount of Composure to their core argument when you create a new argument, but can only trigger once per turn.

Ok, here are some suggestions I though about:
- Jakes Smuggler: heals their arguments (included their core argument) by half oif the Resolve damage dealt to you when they attack (spread across their arguments, like the base ability). If Resolve damage is completely blocked, YOU get healed for 2 Resolve instead. Resolve healed cannot go over their maximum value.
- Cult Luminitiate: if they don't have one, at the end of their turn they create a medium-health argument that increases the resolve of ONE non-core argument every time one of their other arguments is destroyed. The amount of resolve gained increases every time they deal Resolve damage to you (by increasing the argument's stacks) but is reset to its minimum if all damage is blocked. They argument itself can be targetted and destroyed, in which case a new one will be created at its minimum value next turn.

@Pelandes My goal is to make each faction class have some common theme which they follow, but be different enough that it doesn't feel samey negotiating against all of them. I'm curious to hear about both subtle and drastic ideas for changes.

Uh, I'm liking this idea! I'll give you some ideas once I have them better thought out.
Are you looking for slight tweaks to the base ability or giving them more detailed and unique core arguments? My suggestions may vary for either case.