Mu Qingfang

Since there's a lot not filled in about Mu Qingfang, here are my headcanons for details brought up in memes and games.

Sword: Yùhé Sùdù: Healing speed, as according to google.
Colors: Brown and cream. (Yes, I know what the donghua has, and like the mustache, I reject it.)

Mu Qingfang is a fast flier, and trains his disciples likewise to act as the equivalent to flying ambulances.
He knows how to fight, training mostly for enclosed spaces, but is more likely to use his needles or a talisman to bring down an opponent than his sword. Fighting skills are more focused on restraining a qi deviating patient than an enemy.
He generally prefers to stay sober in case he is called on as a doctor.
Has probably seen the other sect lords in states of undress more than any other outside of their partners. (Flexible on this one, obviously.)