I mean, it’s good confirmation for:
Knights on the king (Knight is already a hard class to prove as)
Healers so that you don’t have to confirm them with heals until very later.
Princesses who use Will-o-Whisp on king.
Nobles who confirm this.
Any investigative that get redirected to the king
This by itself is already 5 ways it can confirm people.
And if a sell sword is on the king, bam. Proven SS ingame and anyone who was on the king is probably good.