Well given that I'm getti g very little response, I'll just get my claim out of the way (and no it's not wonderful or awe inspiring)
Character is Nobara Kugisaki
Role name is one-night straw doll technique: parity resonance, 1x Hairpin
The first ability has me pick two targets. Non lethal actions that are sent to one apply to the other, and vice versa. Non lethal applies to everything except killing abilities. However, it only makes this connection if both players are the same alignment. Specifically, it's a very weird parity cop/magnet in that investigation results are also doubled up - if an investigator targets a player and receives two results, then it could be down to my ability. That means that if they received two results, regardless of what those results actually say, they would be confirmed as the same alignment. My role specifies that this linking is immune to *most* forms of manipulation. I'm allowed to self target.
Night 1, which is the only night I used it, I targeted myself and Neeko. My reasoning was, firstly a parity cop that can self target is super strong, because I wouldn't have to guess at the alignment if someone claimed an investigation. I thought I was a fairly likely candidate for investigation night 1, and if not me, then Magic was too - if anyone received one result on either of us then I'd know he's scum, and if they had two, I would know he's town. There's no restriction on my ability to self target, so I was intending to use it and go through the hard to read/poe slots every other cycle.
Hairpin is unlocked when I claim - I thought me saying my role specifies non Lethal was enough for the role part but Ekko said otherwise, I hadn't done the flavour anyway. All that does is disable the passives of my target for the following cycles, so not the night I use it.
I have nothing else to report. I'm pretty alarmed by the number of investigative roles, though I grant that mine is super specific and niche.