Yellowfang

Yellowfang has really yellow fangs.

Wow, she really needs to brush.

Apparently being Medicine Cat doesn't mean one's a good dentist.

Replaced with Runningnose

What is it with ShadowClan and choosing cats with terrible personal hygiene to be their medicine cats?

She's also secretly Lady Scarab in the Stupid Wings Of Fire Wiki.

I can prove it by:

https://stupid-wings-of-fire.fandom.com/wiki/Lady_Scarab