>>51117110There isn't anything particularly good about Rock/Ghost - I think most trainers wouldn't give it a second thought unless they liked its design.
But there is a special case here: mono-Rock enjoyers. Having a member of your team that is totally immune to Fighting-type moves is a huge benefit and would be considered essential on most Rock teams.
>>51114690>>51117146>>51118090I'm most looking forward to a Fighting/Ground or Fighting/Fairy.
Krookodile remains the only Ground-type Pokemon that can actually resist Dark-type moves... which is kinda crazy.