Yeah, Exadrill is who you need.
Being a Ground / Steel-type, with an incredible ability, excellent Attack, HP, and Speed stats (Good Speed if you choose to use Sand Rush for an ability), but a fairly mediocre movepool. Still, you will not be disappointed with this mole.
Here's a good moveset!
SANDSTORM / SWORDS DANCE (Best not to get cocky and try to set up both. Just choose one)
X-SCISSOR (Very potent attack in Gen V)
ROCK SLIDE (Counter Flying-types perfectly with this!)