Rhyperior

It has small holes in its palms that are used to launch rocks.  Sometimes, Geodude are launched.  It can throw rocks at opponents to deal some damage.
Rhyperior is the original Pokemon with Rock Wrecker.  He's a really strong Pokemon that can make a great Physical wall.  He has high HP, Attack, and Defense.  It makes Rhyperior practically unstoppable.  Rhyperior has low Speed, Sp. Attack, and Sp. Defense stats.  He is also four times weak against Water and Grass moves. If you're not careful, Rhyperior may be down in just a few turns.  He has 6 Super-Effective weaknesses total.  But Rhyperior is still far from bad.
He has a pretty deep movepool.  If you want to be strategic and use Poison Jab to deal damage and poison opponents, Rhyperior has that.  You aren't doing serious WiFi battling? Use Horn Drill.  You want MAXIMUM POWER? Rhyperior has Rock Wrecker.  Megahorn, Drill Run, Hammer Arm, Counter, Dragon Rush, Earthquake, Rock Slide- Rhyperior is capable of inflicting a ton of damage in so many ways.
Rhyperior has the ability Lighningrod.  You are now immune to Electric-Type moves.  It's great on other Pokemon.  The only problem is that RHYPERIOR IS A GROUND TYPE- HE'S ALREADY IMMUNE TO ELECTRIC MOVES!!!!  His other ability is Solid Rock.  It's the better ability.  If a Super-Effective move is used against you, this ability lessens the damage you take from them.  If you want a good Rhyperior, you might want one with this ability.
Rhyperior adds up to a really strong Pokemon that is truly something to fear in all tiers.  If you're up against one, watch out!