Presenting a new (and my first) UU team. It's based around the general premise of using one Pokémon to set up two frail rodents who happen to have NUTTY sweeping powers. The other three Pokémon cover the first three's asses.
Here they are:






D'awww...aren't they just too cute? That's what I love about UU.
The Support

Jumpluff @ Focus Sash
Chlorophyll
Jolly
252 Atk / 4 Def / 252 Spd
- Sleep Powder
- Encore
- U-Turn
- Memento
A pretty fine starter and perfect for setting up either of my sweepers, perhaps even multiple times. One of the fastest sleeps in the game, and foils Scarfers with Sash. I usually Sleep off the bat and then U-turn, switching to a counter if they switch out or to Linoone or Pikachu if they stay in. Later he can come in on Ground/Grass attacks, Leech Seeds, or setup moves, and Encore them for another chance to help out one of my rodents. Alternatively he can go all Memento on some tank/utility poke with "medium" attacking strength, giving my origami-frail sweepers a final shot at glory.
Maxed out Atk instead of HP, 'cause hell, he's not taking more than two unresisted hits anyway, and the extra U-Turn power helps sometimes.

Hitmontop @ Life Orb
Technician
Adamant
252 HP / 252 Atk / 4 Spe
- Bullet Punch
- Mach Punch
- Stone Edge
- Close Combat
Standard priority Top. Extremely useful for general-purpose mayhem and sweep-stopping. I might put Stone Edge over Bullet Punch for Rotom and Mantine. Actually put it over Fake Out, so I still have Frosslass coverage. May use Muscle Band or even Leftovers for easier switch-ins.

Phione @ Damp Rock
Calm
252 HP / 52 SpA / 204 SpD
- Rain Dance
- Surf
- Toxic
- Rest
He's not as bulky as Dewgong, but he has higher Special Attack and Speed, fewer weaknesses and more resistances. Even though rain doesn't really help the team, Phione doesn't care - he deserves it all to himself. Rain-boosted, STAB Surf off of 284 SpA smacks most things fairly hard, and Toxic is a real bitch when Phione is recovering 100% of its health every turn, AND can't be statused. Testing out with a Calm spread. 252/204 lets me survive 252 Timid Life Orb Manectric Thunderbolt.

Sandslash @ Leftovers
Impish
252 HP / 4 Atk / 252 Def
- Earthquake
- Stone Edge
- Rapid Spin
- Stealth Rock
This thing's pretty bulky on the physical side. Spins, lays Rocks, and provides a much-needed powerful Earthquake.
The Rodents!

Pikachu @ Light Ball
Timid
4 Def / 252 SpA / 252 Spe
- Substitute
- Nasty Plot
- Thunderbolt
- Grass Knot
Most people write off Sweepachu as a ludicrous pipe dream. Surely Pikachu has better things to do with its time than Nasty Plotting, things such as attacking and then getting the fuck out of there? Of course. Yet, a Pikachu sweep is just too awesome to pass up. With Encore or Sleep support, Pikachu actually has plenty of late-game chances to get really NASTY. Pikachu is sort of the core/inspiration of my team; he's incredibly flimsy and hard to use but the payoff is delicious if I get him to work.
I am sort of torn between HP Ice and Grass Knot. I do have Steelix (and I suppose Lanturn) problems, but without HP Ice Altaria would walk (dance) all over me.

Linoone @ Salac Berry
Gluttony (or may try Pickup to keep the Salac)
Adamant
72 HP / 252 Atk / 184 Spd
- Belly Drum
- Extremespeed
- Shadow Claw
- Dig / Natural Gift
(Actually he's more of a weasel than a rodent) Standard Belly Drummer. He's a bit of a one-off; getting walled and forced to switch out pretty much ends his usefulness, unless Spikes/Rocks aren't around and I didn't get hit at all. Gets mad setups from Jumpluff, and since he only needs a turn to get going I can usually Drum without any problems. Extremespeed over Return is for Hitmontop; unfortunately some bulkier Pokémon can survive it. Unfortunately Rock Smash is his absolute best option against Rocks and Steels, though unless it's a x4 weak it only has 80 base power (compared to Extremespeed's 60 and unresisted Shadow Claw's 70). I might find a way to put Stealth Rock out, and then use Dig over Rock Smash, hurting fliers as they switch in to resist. Alternatively I could try Natural Gift, which is a base 80 Fighting attack if I still have my Salac. I will try Natural Gift if it ever gets implemented on Shoddy.
Speed EVs are to outspeed Modest Scarf Rotom after Salac. The HP is odd for a reason: with Extremespeed, Salac isn't completely necessary in most cases, and this way I can possibly Drum twice if I'm forced to swich out the first time. Of course, if I'm injured even the slightest I can still only drum once but at least I get the Salac boost.
Comments/criticism appreciated. This is my first foray into UU.