I've been having a lot of success with this team, oddly... But here it is!
Team at a glance
On to the details!
Mamoswine
Nature: Jolly
Ability: Thick Fat
EVs: 252 attk, 252 spe, 4 hp
Item: Focus Sash
Earthquake
Ice Shard
Stealth Rock
Endeavor
My lead pokemon, generally used as a suicide lead, but not always. Gets stealth rock up reliably (if they have something like volcarona + spinner I'll try to not suicide him, or a dragon I might need to revenge.) This guy can actually wreak a fair bit of havoc on his own sometimes, and I think surprises a lot of people with his speed.
Volcarona
Nature: Timid
Ability: Flame Body
EVs: 240 hp, 252 def, 16 spe
Item: Leftovers
Roost
Quiver Dance
Bug Buzz
Fiery Dance
This guy used to be a Landorus-I, but I realized that gave me A LOT of ice weakness, and not enough special fire threat for things like Ferrothron and Skarmory. Volcarona covers the rest of the team's downfalls very nicely, and can cause all kinds of grief for the opposing team. The bulky variant can really end games if the opponent doesn't have something running stone edge. Takes hits like a beast, especially after a quiver dance, not to mention flame body, then sets up and destroys. However, since he hates stealth rock...
Starmie
Nature: Timid
Ability: Natural Cure
EVs: 252 spa, 252 spe, 4 hp
Item: Leftovers
Hydro Pump
Thunderbolt
Ice Beam
Rapid Spin
Good ol' Starmie. Out-speeds, terrifies, and damages all sorts of things, AND is a rapid spinner, AND can stomp spinblockers, for the most part (sometimes jellicent is troublesome even with thunderbolt.) Some games this guy is just rapid spin suicide, and sometimes he cleans house. Gotta love 'im
Scizor
Nature: Adamant
Ability: Technician
EVs: 248 hp, 252 atk, 8 spdef
Item: Choice Band
Bullet Punch
Pursuit
U-Turn
Superpower
Freaking beast, and one of my favorite pokes. Packs a brutal STAB priority move, can pursuit-mate a number of threats, like the Lati@s (depending on their sets and prediction, sometimes they come out ahead,) Gengar, and works as a good pivot with U-Turn (go away, Celebi.) Also has saved me from DDnite a number of times, or scarfmence. Always handy to have, although getting locked on a good predict (Keldeo on bullet punch argh,) can make things difficult for me.
Breloom
Nature: Jolly
Ability: Technician
EVs: 252 spe, 252 atk, 4 hp
Item: Lum Berry
Spore
Bullet Seed
Swords Dance
Mach Punch
Mmmm, moar priority! And a 100% sleep move. Kind of fun with predict wars too, because a lot of times Breloom has to be "played around," and you can use this to your advantage. If you think they're going to switch to a sleep soaker, just attack, or if you sleep the sleep soaker, and predict a Lati@s to come, switch to Scizor after the spore. Oh yes, good times to be had. Sometimes I wonder if I shouldn't use a bulkier grass type, like Celebi or something, but Breloom is awesome and has definitely proved his worth.
Salamence
Nature: Jolly
Ability: Moxie
EVs: 252 spe, 252 atk, 4 hp
Item: Choice Scarf
Earthquake
Dragon Claw
Fire Blast
Outrage
This used to be a DDnite, because Dragonite has always been a favorite, but I like mence as well, and the way I was using Dnite, scarfmence seems to do the same job, only better. Plus, pretty much every team needs a scarfer, and I like to avoid legendaries where possible, so Latios was out, and hello scarfmence. Cleans up well, revenge kills well, and annoys me how often people DON'T switch to their Scizor/Forretress/whatever when I predict and hit Fire Blast =( I've been tempted to go back to Dnite and change him to a bander with espeed instead of ddnite, just because I like dnite so much, but... I dunno, scarfmence is just so deadly!
Importable or whatever they call that mode... If I've formatted it wrong, please let me know and I'll fix it.
Mamoswine
Nature: Jolly
Ability: Thick Fat
EVs: 252 attk, 252 spe, 4 hp
Item: Focus Sash
Earthquake
Ice Shard
Stealth Rock
Endeavor
Volcarona
Nature: Timid
Ability: Flame Body
EVs: 240 hp, 252 def, 16 spe
Item: Leftovers
Roost
Quiver Dance
Bug Buzz
Fiery Dance
Starmie
Nature: Timid
Ability: Natural Cure
EVs: 252 spa, 252 spe, 4 hp
Item: Leftovers
Hydro Pump
Thunderbolt
Ice Beam
Rapid Spin
Scizor
Nature: Adamant
Ability: Technician
EVs: 248 hp, 252 atk, 8 spdef
Item: Choice Band
Bullet Punch
Pursuit
U-Turn
Superpower
Breloom
Nature: Jolly
Ability: Technician
EVs: 252 spe, 252 atk, 4 hp
Item: Lum Berry
Spore
Bullet Seed
Swords Dance
Mach Punch
Salamence
Nature: Jolly
Ability: Moxie
EVs: 252 spe, 252 atk, 4 hp
Item: Choice Scarf
Earthquake
Dragon Claw
Fire Blast
Outrage
Team at a glance






On to the details!

Mamoswine
Nature: Jolly
Ability: Thick Fat
EVs: 252 attk, 252 spe, 4 hp
Item: Focus Sash
Earthquake
Ice Shard
Stealth Rock
Endeavor
My lead pokemon, generally used as a suicide lead, but not always. Gets stealth rock up reliably (if they have something like volcarona + spinner I'll try to not suicide him, or a dragon I might need to revenge.) This guy can actually wreak a fair bit of havoc on his own sometimes, and I think surprises a lot of people with his speed.

Volcarona
Nature: Timid
Ability: Flame Body
EVs: 240 hp, 252 def, 16 spe
Item: Leftovers
Roost
Quiver Dance
Bug Buzz
Fiery Dance
This guy used to be a Landorus-I, but I realized that gave me A LOT of ice weakness, and not enough special fire threat for things like Ferrothron and Skarmory. Volcarona covers the rest of the team's downfalls very nicely, and can cause all kinds of grief for the opposing team. The bulky variant can really end games if the opponent doesn't have something running stone edge. Takes hits like a beast, especially after a quiver dance, not to mention flame body, then sets up and destroys. However, since he hates stealth rock...

Starmie
Nature: Timid
Ability: Natural Cure
EVs: 252 spa, 252 spe, 4 hp
Item: Leftovers
Hydro Pump
Thunderbolt
Ice Beam
Rapid Spin
Good ol' Starmie. Out-speeds, terrifies, and damages all sorts of things, AND is a rapid spinner, AND can stomp spinblockers, for the most part (sometimes jellicent is troublesome even with thunderbolt.) Some games this guy is just rapid spin suicide, and sometimes he cleans house. Gotta love 'im

Scizor
Nature: Adamant
Ability: Technician
EVs: 248 hp, 252 atk, 8 spdef
Item: Choice Band
Bullet Punch
Pursuit
U-Turn
Superpower
Freaking beast, and one of my favorite pokes. Packs a brutal STAB priority move, can pursuit-mate a number of threats, like the Lati@s (depending on their sets and prediction, sometimes they come out ahead,) Gengar, and works as a good pivot with U-Turn (go away, Celebi.) Also has saved me from DDnite a number of times, or scarfmence. Always handy to have, although getting locked on a good predict (Keldeo on bullet punch argh,) can make things difficult for me.

Breloom
Nature: Jolly
Ability: Technician
EVs: 252 spe, 252 atk, 4 hp
Item: Lum Berry
Spore
Bullet Seed
Swords Dance
Mach Punch
Mmmm, moar priority! And a 100% sleep move. Kind of fun with predict wars too, because a lot of times Breloom has to be "played around," and you can use this to your advantage. If you think they're going to switch to a sleep soaker, just attack, or if you sleep the sleep soaker, and predict a Lati@s to come, switch to Scizor after the spore. Oh yes, good times to be had. Sometimes I wonder if I shouldn't use a bulkier grass type, like Celebi or something, but Breloom is awesome and has definitely proved his worth.

Salamence
Nature: Jolly
Ability: Moxie
EVs: 252 spe, 252 atk, 4 hp
Item: Choice Scarf
Earthquake
Dragon Claw
Fire Blast
Outrage
This used to be a DDnite, because Dragonite has always been a favorite, but I like mence as well, and the way I was using Dnite, scarfmence seems to do the same job, only better. Plus, pretty much every team needs a scarfer, and I like to avoid legendaries where possible, so Latios was out, and hello scarfmence. Cleans up well, revenge kills well, and annoys me how often people DON'T switch to their Scizor/Forretress/whatever when I predict and hit Fire Blast =( I've been tempted to go back to Dnite and change him to a bander with espeed instead of ddnite, just because I like dnite so much, but... I dunno, scarfmence is just so deadly!
Importable or whatever they call that mode... If I've formatted it wrong, please let me know and I'll fix it.
Mamoswine
Nature: Jolly
Ability: Thick Fat
EVs: 252 attk, 252 spe, 4 hp
Item: Focus Sash
Earthquake
Ice Shard
Stealth Rock
Endeavor
Volcarona
Nature: Timid
Ability: Flame Body
EVs: 240 hp, 252 def, 16 spe
Item: Leftovers
Roost
Quiver Dance
Bug Buzz
Fiery Dance
Starmie
Nature: Timid
Ability: Natural Cure
EVs: 252 spa, 252 spe, 4 hp
Item: Leftovers
Hydro Pump
Thunderbolt
Ice Beam
Rapid Spin
Scizor
Nature: Adamant
Ability: Technician
EVs: 248 hp, 252 atk, 8 spdef
Item: Choice Band
Bullet Punch
Pursuit
U-Turn
Superpower
Breloom
Nature: Jolly
Ability: Technician
EVs: 252 spe, 252 atk, 4 hp
Item: Lum Berry
Spore
Bullet Seed
Swords Dance
Mach Punch
Salamence
Nature: Jolly
Ability: Moxie
EVs: 252 spe, 252 atk, 4 hp
Item: Choice Scarf
Earthquake
Dragon Claw
Fire Blast
Outrage