Swampert@Leftovers
Torrent
Relaxed: EVs: 252HP 176Def 82Attk
~Earthquake
~Roar
~Stealth Rock
~Waterfall
This is a variation on the typical lead Swampert. Instead of investing in Special Defense or Speed, I put EV investment in attack to catch my opponent off guard so when he switches in a pokemon he thinks can live an Earthquake or Waterfall from a Swampert with no attack investment it will KO. He also can be a hard hitting wall and can counter Metagross leads quite easily.
Skarmory@Leftovers
Keen Eye
Careful: EVs: 252HP 176SpcDef 82Def
~Brave Bird
~Roost
~Spikes
~Whirlwind
This is a pretty typical mixed defenses Skarmory. The reason I chose to beef up its Special Defense instead of making it all out defensive was so it could be a very safe switch in to a Grass Type attack aimed at Swampert it takes %12 Damage from a max Special Attack Shaymin for example. Swampert also covers its back from the horrors of Infernape and Heatran.
Tentacruel@Black Sludge
Clear Body
Calm: EVs: 252HP 174Def 72SpcDef 12Spe
~Substitute
~Rapid Spin
~Surf
~Toxic Spikes
This Tentacruel is primarily for support because my team needs a spinner to get rid of Spikes and most of my team benefits from Toxic Spikes support. His main strategy is to Subsitute then lay down Toxic Spikes or Rapid
Spin depending on the situation.
Rotom-W@Leftovers
Levitate
Calm: EVs: 252HP 168Def 88Spe
~Discharge
~Hydro Pump
~Shadow Ball
~Will-o-wisp
This Rotom is my spinblocker and runs the standard defensive set that is on Smogon (I have never really used Rotom before.). My team with all of the entry hazard abilities it possesses desperately needed a spin blocker to be effective, and Rotom is one of the best.
Scizor@Life Orb
Technician
Adamant: EVs: 252Attk 252Spe 4HP
~Brick Break
~Bullet Punch
~Roost
~Swords Dance
This is a pretty typical Swords Dance Scizor set and I use it as a late game sweeper due to the fact that it is really hard to shut down. It can take down Reflect and Swords Dance to negates the lowered attack from burns, and can heal off any burn damage that accumulates with Roost.
Heatran@Choice Scarf
Flash Fire
Rash: EVs: 252SpcAttk 252Spe 6SpcDef
~Dragon Pulse
~Earth Power
~Explosion
~Fire Blast
Heatran is here to help Scizor pull off a sweep by absorbing fire type attacks and preventing Scizor from becoming and extra-crispy bug. He carries Earth Power instead of HP Grass because it makes more sense due to his role on my team since Earth Power Can take out fire types easily.