>>164382153 weak, 3 immune isn't a bad spread against ground. It's effective defensively, no real glaring holes.
My team has served me pretty well, but the metagame seems to be catching up with me.
Gliscor @ Toxic Orb
Skarmory @ Leftovers
Garchomp @ Choice Scarf
Rotom-W @ Leftovers
Volcarona @ Leftovers
Gengar @ Black Sludge
The sixth slot was a floating sweeper, and I found Gengar to be pretty reliable. I had M-Kanga in that slot before, as well as a Breloom, but neither of those worked as nicely. On Showdown I can even put Defog on Gliscor in Pokebank OU.