Ursaring is a fecking monster. Why he isn't used more, I don't know. Anyway, the team;
Aerodactyl @ Life Orb
Nature: Hasty
Ability: Pressure
EV's: 252Atk, 216Spe, 40Sp.Atk
~ Stone Edge
~ Earthquake
~ Fire Blast
~ Ice Fang
Lead. Doesn't tend to do much early on, but forces the likes of Weavile out. Also makes a fantastic late-game sweeper.
Blissey @ Leftovers
Nature: Calm
Ability: Natural Cure
EV's: 252Def, 236Sp.Def, 20Hp
~ Aromatherapy
~ Seismic Toss
~ Ice Beam
~ Softboiled
Lol Blissey. Aromatherapy because Mesprit needs it. Shed Shell for Duggy. Flamethrower has been decidedly useless, considering Ice Beam over it. 20 Hp hits a lefties number.
Ursaring @ Life Orb
Nature: Adamant
Ability: Guts
EV's: 252Atk, 232Hp, 24Def
~ Return
~ Fire Punch
~ Rest
~ Sleep Talk
Killer wallbreaker. Whilst asleep, this thing is capable of 2HKOing Gliscor, Hippowdon, Skarmory, most Cresselia, the list goes on and on. Also serves as a pretty useful status taker. In case you were wondering, the EV's are designed to be /10 -1, in order to minimise Life Orb recoil whilst at the same time optimising his defenses.
Gliscor @ Leftovers
Nature: Impish
Ability: Sand Veil
EV's: 252Hp, 252Def, 6Spe
~ Earthquake
~ Roost
~ Ice Fang
~ Taunt
Typical walling Gliscor set-up, counters what it needs to. Taunt for shutting down incoming potential counters, as well as making up to a degree for my total lack of phazing otherwise.
Mesprit @ Choice Scarf
Nature: Bold
Ability: Levitate
EV's: 240Spe, 188Hp, 80Sp.Atk
~ Psychic
~ Ice Beam
~ Thunderbolt
~ Rest
Peculiar, no? I needed something that could counter Swords Dance Garchomp, Gyarados, Mixape and to an extent Electivire. Scarf Mesprit does a fantastic job of this; he outspeeds Gyara after a DD, as well as the other two whenever, and proceeds to OHKO them. He still beats Garchomp, even if it has a Yache Berry as an item, as SD'd Dragon Claw does around 70%. Ones that run both Outrage and Yache are problematic, but they can be finished off by Aero once they're locked in. EV's allow Garchomp OHKO with Ice Beam, outspeed max speed Jolly Weavile, and then just pumping the Hp. Rest because I prefer my counters to have some form of longevity, and Blissey can Aromatherapy the sleep away at a later date anyway.
It has slightly more problems with Vire, but it's still a 2HKO with LO recoil taken into account, which most Vire carry.
Scizor @ Expert Belt
Nature: Adamant
Ability: Technician
EV's: 252Atk, 172Spe, 84Hp
~ U-Turn
~ Roost
~ Pursuit
~ Quick Attack
Finally, something that punishes Cresselia and Celebi. Priority is also a massive asset to any team. Considered a Specs Gengar here, just to give me a bit more special oomph on a predominantly physical team, but then I lose my Dragon resist. Considered Specs Lucario here, but then I can't touch Cress. Stops Weavile beating me.
Halp :(

Aerodactyl @ Life Orb
Nature: Hasty
Ability: Pressure
EV's: 252Atk, 216Spe, 40Sp.Atk
~ Stone Edge
~ Earthquake
~ Fire Blast
~ Ice Fang
Lead. Doesn't tend to do much early on, but forces the likes of Weavile out. Also makes a fantastic late-game sweeper.

Blissey @ Leftovers
Nature: Calm
Ability: Natural Cure
EV's: 252Def, 236Sp.Def, 20Hp
~ Aromatherapy
~ Seismic Toss
~ Ice Beam
~ Softboiled
Lol Blissey. Aromatherapy because Mesprit needs it. Shed Shell for Duggy. Flamethrower has been decidedly useless, considering Ice Beam over it. 20 Hp hits a lefties number.

Ursaring @ Life Orb
Nature: Adamant
Ability: Guts
EV's: 252Atk, 232Hp, 24Def
~ Return
~ Fire Punch
~ Rest
~ Sleep Talk
Killer wallbreaker. Whilst asleep, this thing is capable of 2HKOing Gliscor, Hippowdon, Skarmory, most Cresselia, the list goes on and on. Also serves as a pretty useful status taker. In case you were wondering, the EV's are designed to be /10 -1, in order to minimise Life Orb recoil whilst at the same time optimising his defenses.

Gliscor @ Leftovers
Nature: Impish
Ability: Sand Veil
EV's: 252Hp, 252Def, 6Spe
~ Earthquake
~ Roost
~ Ice Fang
~ Taunt
Typical walling Gliscor set-up, counters what it needs to. Taunt for shutting down incoming potential counters, as well as making up to a degree for my total lack of phazing otherwise.

Mesprit @ Choice Scarf
Nature: Bold
Ability: Levitate
EV's: 240Spe, 188Hp, 80Sp.Atk
~ Psychic
~ Ice Beam
~ Thunderbolt
~ Rest
Peculiar, no? I needed something that could counter Swords Dance Garchomp, Gyarados, Mixape and to an extent Electivire. Scarf Mesprit does a fantastic job of this; he outspeeds Gyara after a DD, as well as the other two whenever, and proceeds to OHKO them. He still beats Garchomp, even if it has a Yache Berry as an item, as SD'd Dragon Claw does around 70%. Ones that run both Outrage and Yache are problematic, but they can be finished off by Aero once they're locked in. EV's allow Garchomp OHKO with Ice Beam, outspeed max speed Jolly Weavile, and then just pumping the Hp. Rest because I prefer my counters to have some form of longevity, and Blissey can Aromatherapy the sleep away at a later date anyway.
It has slightly more problems with Vire, but it's still a 2HKO with LO recoil taken into account, which most Vire carry.

Scizor @ Expert Belt
Nature: Adamant
Ability: Technician
EV's: 252Atk, 172Spe, 84Hp
~ U-Turn
~ Roost
~ Pursuit
~ Quick Attack
Finally, something that punishes Cresselia and Celebi. Priority is also a massive asset to any team. Considered a Specs Gengar here, just to give me a bit more special oomph on a predominantly physical team, but then I lose my Dragon resist. Considered Specs Lucario here, but then I can't touch Cress. Stops Weavile beating me.
Halp :(