SCOLIPEDE
Scolipede. One of the most beastly pokemon of the 5th generation. He can set up hazards, baton pass, and even sweep. Now you may think he is outclassed by other sweepers, but, he has a very important 112 base speed. This allows him to outrun practically every useful pokemon in OU. My favorite set, SD, packs tons of power. With a STAB megahorn, he wrecks teams. Setting up spikes/t-spikes is also very easy with his base speed. He has 2 quad resistances to fighting and grass, which are very useful. He does have a weakness to stealth rock though. Despite this, he is a great pokemon to use in both UU and OU. I won't keep you waiting any longer with my boring rabble, so, here ya goes!
STATS:
HP: 60
Attack: 90
Defense: 89
Sp. attack: 55
Sp. defense: 69
Speed: 112
HP: 60
Attack: 90
Defense: 89
Sp. attack: 55
Sp. defense: 69
Speed: 112
Swords Dance Sweeper
Scolipede@life orb
Nature: Jolly
EV's: 252 attack 252 speed 4 hp
Ability: Swarm
1. Swords Dance
2. Megahorn
3. Earthquake
4. Rock Slide
Now, this set is meant to make a good switch, SD, then sweep. Megahorn pack 180 base power with stab. This can destroy teams. Earthquake and Rock Slide help take care of the resistances. Swarm powers up Megahorn when under 1/3, which is extremely useful. Only a few pokemon can reliably counter all moves on this set. The most namely being gliscor. I like this set the best and find it very useful.
The Lead:
Scolipede@Focus Sash
Nature: Jolly
EV's: 252 speed 252 attack
Ability: Swarm/Poison Point
1. Toxic Spikes
2. Spikes
3. Megahorn
4. Earthquake/Substitute
Scolipede can also be an effective lead who is speedy and can set up 2 entry hazards. Megahorn is STAB, EQ helps cover others. Substitute blocks status and helps set up. Toxic Spikes can be used for a stallish team, Spikes for one with a lot of switches. He is a great all purpose lead who can set up and do damage.
Baton Pass
Scolipede@Focus Sash
Nature: Jolly
EV's: 252 speed and either hp or attack, whichever one you want
Ability: Swarm/Poison Point
1. Swords Dance/Agility/Iron Defense/Substitute
2. Swords Dance/Agility/Iron Defense/Substitute
3. Baton Pass
4. Megahorn
Probably not his best set, but it can be pretty effective. The choice is yours for what boosting move you want. Baton pass to pass the boosts. Megahorn is so he isn't taunt bait. Either ability could work, though poison point can be nice to inflict an annoying status on walls.
Well, that's about it, hope you liked it