I decided to be a bit more creative on this one.
StealthCocks (Mew) @ Leftovers
Trait: Synchronize
EVs: 252 Def / 252 SDef
Bold Nature (+Def, -Atk)
- Rain Dance
- Stealth Rock
- Super Fang
- Toxic
SawkInTheEye (Sawk) (M) @ Salac Berry
Trait: Sturdy
EVs: 4 HP / 252 Atk / 252 Spd
Adamant Nature (+Atk, -SAtk)
- Reversal
- Close Combat
- Earthquake
- Stone Edge
Toxicroak (M) @ Black Sludge
Trait: Dry Skin
EVs: 252 HP / 252 Atk / 4 Spd
Adamant Nature (+Atk, -SAtk)
- X-Scissor
- Drain Punch
- Stone Edge
- Earthquake
Poseidon (M) @ Choice Scarf
Trait: Moxie
EVs: 4 HP / 252 Atk / 124 SDef / 124 Spd
Careful Nature (+SDef, -SAtk)
- Waterfall
- Earthquake
- Stone Edge
- Ice Fang
Parasect (M) @ Leftovers
Trait: Dry Skin
EVs: 6 Atk / 252 Def / 252 SDef
Impish Nature (+Def, -SAtk)
- Toxic
- Protect
- Aromatherapy
- X-Scissor
BugzAreYummy (Politoed) (M) @ Choice Specs
Trait: Water Absorb
EVs: 6 HP / 252 SAtk / 252 SDef
Modest Nature (+SAtk, -Atk)
- Hydro Pump
- Ice Beam
- Hidden Power [Electric]
- Mud Bomb
Mew: Poli can't set up Rocks so I thought I'd put Rain Dance on this thing, and when RD wears off I'll call in Poli.
Sawk: Classic sweeper. Needed one on the team.
Toxicroak: Lots of HP + Black Sludge + Dry Skin + Drain Punch = Death- except for Psychic where I can switch to Mew if I still have it alive.
.....I see a bit of a problem here. I could use some fixing.
Gyarados: Moxie Waterfall = WIN. Earthquake works too. I also have some special bulk when I need some.
Parasect: A Grass type in the rain gets protection from deadly Waterfalls. I also get Dry Skin + Lefties to use as healing. XScissor is for Taunt.
Poli: For use after Mew's RD wears off. It has decent coverage and it's pretty Specially Bulky.