I can only think of her use in CB unkillable comps. The right speed for speed tune, enough accuracy to land the debuffs, and the rest in Crit rate, crit damage and attack. Otherwise, she's too squishy to really cut it anywhere else.

That's not really the reason she isn't used elsewhere.

The reason she is only used in CB, is because all of her moves are single-target, and outside of CB, you're best served with people who can clear waves.

The only place I use her still is FW.

I use her in FW too, but only because I don't have many viable Skinwalkers for that crypt. I'd still struggle to find a place for her even if she had AOE skills, not with 14K HP and 727 Def. Maybe an arena glass cannon for speed teams, I guess, but that's about it.

Doesn't matter. 90% of my teams could be completely naked, but if they still had their offensive stats they'd be fine. Dungeons and DTH are all about control. You don't take damage. 

Lol my champs do. Who do you use? My DTH wave team have Krisk's provoke, sometimes Stun from Ragash, but that's about it. I rely more on Helicath's Block Damage and Duchess' revive than control, TBH. But I still try not to bring squishy champs along. Kymar is just now getting geared, he has accuracy for Dungeons and DTH, but his speed is lacking.