Character Name: Caster (Cú Chulainn)
Choice: Witch
Action: Caster has been providing improvised warding tattoos that fortify mental resolve, ones that counter attempts of control to the Mirrorbound population. Since he'd mention an interest in learning the runes that resistance uses, one of the espionage team, Archer suggested making contact and trading skills/knowledge.
So in return for learning their warding/dispel enchantments, per Archer suggestion Caster is going to provide runic tattoos to one of the resistance cells. He is also open to giving a quick crash-course on how to paint the runes in a way to enchant flesh if they got a Witch wanting to learn, but it's not like they have a lot of time. Timeline wise, he probably started this somewhere near the end of first dignitaries visit (he's staying for entire month)
Overall Effect: He's hoping it's a positive, as it will give the resistance better another tool for fighting the compulsion. But ¯\_(ツ)_/¯
Proof: He agreed for this idea in this thread will add a follow-up as it happens.