Hippowdon@Leftovers
Impish
252 HP, 252 Def, 6 Atk
Earthquake
Slack Off
Ice Fang/Stone Edge
Stealth Rock
Starts Sandstorm.
I couldn't really think of another edit, it looks fine as it is, but I doubt you're gonna be staying in with any grass types, as far as I can see, they will all OHKO you, so I prefer SE for the power, but I'm not sure.
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Heatran@Choice Scarf
Modest
252 Sp. Atk, 236 Spd, 20 HP
Fire Blast
Earth Power
Explosion/HP [GRASS]/HP [ICE]
Dragon Pulse
Resists Sandstorm and hits hard and fast.
I run it with HP ICE and Dragon Pulse usually, because I don't trust Heatran's attack especially with a modest nature, and I'm always afraid that thye will predict and switch into a bulky Steel/Rock or a ghost type. But that's just me.
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Cradily@Leftovers/Wide Lens
Sassy
252 HP, 164 Def, 92 Sp. Def
Energy Ball
Toxic
Recover/Ingrain
Rock Slide/Stone Edge
Special Wall. This switches in on almost any Special Attacks and is unique in its ability to learn Recover. Toxic Stall to the supreme here, Rock Slide is a safer option over Stone Edge. Energy Ball for Swampy and Bulky Ground and Water Types.
Yah.
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Garchomp@Choice Band
Jolly
252 Atk, 252 Spd, 6 HP
Stone Edge
Fire BLAST
Dragon Claw
Earthquake
Better than Brightpowder Chomp, Swords Dance and Sweep. Yache Berry is gimicky, but lets me hit CB Weavile with some reliability.
The three F's for Garchomp Fire Fang Fails. It just doesn't do the magic like Fire Blast, however you may need to switch to CB to use it to it's full effect, it just works better.
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Weezing@Leftovers/Black Sludge
Bold
252 HP, 252 Def, 6 Sp. Def
Fire Blast/Shadow Ball/Dark Pulse
Pain Split
Will-o-Wisp/Haze
Thunderbolt
Hera Counter and Levitater. Originally had Gengar to soak up Rapid Spin, but I don't really care for the Stealth Rock as much as being able to counter common threats.
When I ran my Weezing with Fire Blast on Shoddy, the foe always seemed to predict it and switch t o something with a Pyschic move, and often defeat it, so I used Shadow Ball, and I don't have that problem so much any more, and also, I'd rethink those EVs a little, try to squeeze in some Sp.Atk and sacrifice a stat with max EVs for a little more Sp.Def
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Vaporeon@Leftovers
Bold
188 HP, 252 Def, 68 Sp. Atk/Def
Surf
Baton Pass
Wish
Substitute
Provides Psuedo-Phazing with Yawn, and is also my Wish passer. Takes water attacks directed at Hippo and Heatran with aplomb. This works, so only the last slot is up in the air at the moment.
This set FTW, nice EV spread though.