Groudon is the best ground Pokemon. It has 150 in base attack (only four Pokemon has higher!), so Groudon can do some serious damage with earthquake. Groudon also has a special ability which automatically makes the weather sunny, and it can learn powerful fire attacks like Eruption + Solarbeam, which is really useful in the sunny weather.
In Pokémon Platinum, all of the ground-type moves are Bone Club, Bone Rush, Bonemerang, Dig, Earth Power, Earthquake, Fissure, Magnitude, Mud Bomb, Mud Shot, Mud Sport, Mudslap, Sand Tomb, Sand Attack and Spikes.
fissure
blue flare
This is my opinion but... I think a good ground Pokemon is any Pokemon that has the move earthquake. It has an accuracy of 100 and its power is 100. Hope it helped!
mew
Zigzagoon:Emerald
Earthquake can OHKO, yes, but it's not specifically an OHKO move. It is, however, a powerful move, so it's a good move to teach a Ground-type Pokemon or a Pokemon with a high physical attack that can learn it.
All you need is a ground type pokemon or a ground type move
a water type move
i think it is any ground type Pokemon as it is a ground type move.
Fissure
The easiest way is to use a ground-type Pokemon that knows ground-type moves. If you cannot get this, at least get a Pokemon that has a ground-type move. The electric gym will go much smoother if you use a ground-type move or Pokemon (or both).
I Think Mudkip is because not only is he water, he is also ground, so he learns move to defend itself against thunder
the best Pokemon to use against electric Pokemon is ground/rock Pokemon.
This is my opinion but... I think a good ground Pokemon is any Pokemon that has the move earthquake. It has an accuracy of 100 and its power is 100. Hope it helped!
A ground, fire, or fighting type. A Scyther that knows a move like Brick Break can be really useful.
furret
Roar of Time is totally the best move! It has 150 power :D I taught it to all my dragon Pokemon! ^^
Ground Pokemon can defeat electric Pokemon.
The move Earthquake make the ground rumble and every other Pokemon's hp falls also if in a double battle your other Pokemon will be affected too.