The Elite 4's dark type member Karen from Johto has:
Umbreon (Dark)
Vileplume (Grass-Poison)
Murkrow (Dark-Flying)
Gengar (Ghost-Poison)
Houndoom (Dark-Fire)
see the problem? 2 aren't dark type, keeping with what they had at the time, I would give her to replace Gengar and Vileplume, Sneasel (Dark-Ice) and Tyranitar (Rock-Dark).
