This is my UU RMT meant to excel in UU. Because Heracross is banned on the Underused Ladder of which I find matches for my team, it instead gets Registeel his often-needed coffee.
I could use help with getting sprites for my team, and I've tested this on Shoddy Battle to demonstrate a UU Team.
Without further ado, here goes:
1. SpinWheel (Uxie) (HP 252, Def 252, SpDef 6) @ Light Clay [Psychic]
Ability: Levitate
Nature: Impish
Moveset:
1. Stealth Rock; Rock
2. Reflect; Psychic
3. Light Screen; Psychic
4. U-turn; Bug
Function in the Team
Uxie is the anti-Fighting core of the Registeel team, while also being anti-Ground on account of Levitate.
Mismagius and Alakazam are too physically fragile to be useful, but that's why Uxie is more likely to be a permanent member. He's also my Lead because those screens help at the very beginning. Also, U-turn guarantees its return in a later part of the battle to set up screens again.
Reasons behind Movepool
1. Stealth Rock is to set up before I put my screens up in the event that my opponent tries to switch stuff in.
2. Reflect boosts the entire team's Defense. Considering the bulkiness of my other mons...
3. Light Screen boosts the entire team's Special Defense. Considering the bulkiness of my other mons...
4. U-turn guarantees that it switches out so something else can kill the opposing Pokemon.
2. Bowser (Torterra) @ Leftovers (252 HP, 252 SpDef, 6 Spe) [Grass/Ground]
Ability: Torrent
Nature: Careful
Moveset:
1. Rock Slide; Rock
2. Leech Seed; Grass
3. Earthquake; Ground
4. Wood Hammer; Grass
Function in the Team
Torterra replaces Ludicolo in terms of being the Ground coverage for Registeel. Because he is Grass, it allows me an additional Pokemon to try out for the anti-Fire spot, engaging in less filler on the team.
Not only this, but he is my favorite of the Grass-types in Generations 1-4, and in Generation 5 only Jaroda springs to mind as the Grass-type I'd use on teams.
Reasons Behind Movepool
1. Because Torterra is no longer my Lead, it no longer needs Stealth Rock. Also, it can defend itself against all the types it is weak to with only one Rock-type move. Stone Edge is unreliable, and Rock Slide sometimes flinches.
2. Leech Seed helps drain an enemy Pokemon.
3. Earthquake is for STAB and helps counter Fire-types when possible.
4. Wood Hammer happens to be a good Physical attack. Because of recoil, Leftovers has to be the priority item.
3. Godot (Registeel) @ Leftovers (252 HP, 252 Def, 6 SpDef) [Steel]
Ability: Clear Body
Nature: Careful [So he doesn't spill his coffee]
Moveset:
1. Thunder Wave; Electric
2. Stealth Rock; Rock
3. Shadow Claw; Ghost
4. Iron Head; Steel
Function in the Team
Initially I wanted Registeel to be my Lead. However, I realized that it would be an issue, as his design overall is not very offensive, instead very defensive. He is kept on the team as he does reasonably well in combat.
However, none have beaten him as the foundation for my entire team. Because of my desire to have Registeel be the Team Captain, I designed my team to have a counter to Fire, Fighting, and Ground moves and Pokemon of these attributes.
Reasons Behind Movepool
1. Because Registeel is not my Lead, I don't really require for him to have Stealth Rock. He will instead use Thunder Wave.
2. Counter is nice, but with more RapidSpinners being present in UU I will need a second Stealth Rock.
3. Alakazam, Mismagius, and others are reasonably frail to the point where a Shadow Claw could OHKO them.
4. Iron Head is the obligatory STAB move that, against slower Pokemon, also has a chance to cause flinch.
4. Crash Man (Swellow) @ Flame Orb (255 Atk, 255 Spe) [Normal/Flying]
Ability: Guts
Nature: Jolly
Moveset:
1. Brave Bird; Flying
2. U-turn; Bug
3. Protect; Normal
4. Facade; Normal
Function in the Team
Swellow was one of the additions that replaced a Ursaring with a similar itemset (it was Adamant instead of Jolly).
Now he helps against Ground-types (alongside Ludicolo) as well as Physical Sweeping in general.
Reasons Behind Moveset
1. Brave Bird is STAB. With Swellow's decent Attack, it can OHKO the Ghost-types who resist everything else usually.
2. U-turn helps with scouting and denting Rock-types before they can kill Swellow.
3. Protect guarantees the burn effect necessary for the entire setup.
4. Facade is the main reason for the entire set. Against non-Ghosts, it usually slays them instantly.
5. VonKarma (Milotic) @ Leftovers (252 HP, 200 Def, 58 SpDef)
Ability: Marvel Scale
Nature: Calm
Moveset:
1. Surf; Water
2. Ice Beam; Ice
3. Recover; Normal
4. Toxic; Poison
Function in the Team
Absol and Toxicroak both failed at being Physical Sweepers. Absol is just too slow without a Choice Scarf, even for UU, and Toxicroak was too rain-dependent with Dry Skin.
Milotic ultimately serves as my best counter to Fire-type Pokemon. She will whip Arcanine and Houndoom to shreds should they try to stay on her.
Reasons Behind Movepool
1. Surf is for STAB.
2. Ice Beam counters Grass-types
3. She needs recovery to do well, otherwise the whipping will be stopped.
4. Toxic causes poison for some switch-ins.
6. Kombatant (Heracross) @ Flame Orb (255 Atk, 255 Spe) [Bug/Fighting]
Ability: Swarm
Nature: Jolly
Moveset:
1. Facade; Normal
2. Close Combat; Fighting
3. Night Slash; Dark
4. Swords Dance; Normal
Function on the Team
I don't see why Shedinja is NU, so I promoted him to an Ubers team where he does much better.
Meanwhile, my favorite type is Bug. Generally, I like to have at least one Bug-type in my team. Heracross is probably the best UU bug with Butterfree and Venomoth being close seconds (I remember successfully using a Butterfree as a Lead in OU for a while before switching it to a Jirachi!).
Reasons Behind Movepool
1. Well, now that Heracross is UU, I expect to see him a lot. With Guts and Flame Orb, a Facade will kill just about anything.
2. Disregard Brick Break, for Close Combat deals more damage.
3. Night Slash counters the Ghosts and Psychics often found in UU.
4. Swords Dance boosts its already-high Attack to make it kill anything for good.
It took me a while to finalize my group. Feel free to rate it. I will find a means to get sprites for all my mons by lurking in other RMTs for them. I'll have to look REALLY hard for Shedinja's sprite by the looks of things.
EDIT 1: Several changes while undergoing more testing. RestTalk Milotic had been tried once where it epicly failed. Not only this, but on Pokemonexperte where Heatran SleepTalkers. Ludicolo is replaced with Torterra for Lead spot. Toxicroak is replaced with Heracross. Shedinja got promoted to an Ubers team and in its stead is Milotic. For consistency, all changes will be in blue.
EDIT 2: VonKarma and Kombatant have their movepools and stuff reorganized. Kombatant now provides flawless victories. Wizardheimer also has Expert Belt back, and Registeel has Stealth Rock back.
EDIT 3: Registeel and Torterra both have changes in EV spread. I also updated Swellow's moveset.
EDIT 4: Uxie replaces Alakazam in my party. How unsurprising, considering that Alakazam is too frail to be useful. I'm surprised Alakazam hasn't dropped to NU already.
I could use help with getting sprites for my team, and I've tested this on Shoddy Battle to demonstrate a UU Team.
Without further ado, here goes:

1. SpinWheel (Uxie) (HP 252, Def 252, SpDef 6) @ Light Clay [Psychic]
Ability: Levitate
Nature: Impish
Moveset:
1. Stealth Rock; Rock
2. Reflect; Psychic
3. Light Screen; Psychic
4. U-turn; Bug
Function in the Team
Uxie is the anti-Fighting core of the Registeel team, while also being anti-Ground on account of Levitate.
Mismagius and Alakazam are too physically fragile to be useful, but that's why Uxie is more likely to be a permanent member. He's also my Lead because those screens help at the very beginning. Also, U-turn guarantees its return in a later part of the battle to set up screens again.
Reasons behind Movepool
1. Stealth Rock is to set up before I put my screens up in the event that my opponent tries to switch stuff in.
2. Reflect boosts the entire team's Defense. Considering the bulkiness of my other mons...
3. Light Screen boosts the entire team's Special Defense. Considering the bulkiness of my other mons...
4. U-turn guarantees that it switches out so something else can kill the opposing Pokemon.

2. Bowser (Torterra) @ Leftovers (252 HP, 252 SpDef, 6 Spe) [Grass/Ground]
Ability: Torrent
Nature: Careful
Moveset:
1. Rock Slide; Rock
2. Leech Seed; Grass
3. Earthquake; Ground
4. Wood Hammer; Grass
Function in the Team
Torterra replaces Ludicolo in terms of being the Ground coverage for Registeel. Because he is Grass, it allows me an additional Pokemon to try out for the anti-Fire spot, engaging in less filler on the team.
Not only this, but he is my favorite of the Grass-types in Generations 1-4, and in Generation 5 only Jaroda springs to mind as the Grass-type I'd use on teams.
Reasons Behind Movepool
1. Because Torterra is no longer my Lead, it no longer needs Stealth Rock. Also, it can defend itself against all the types it is weak to with only one Rock-type move. Stone Edge is unreliable, and Rock Slide sometimes flinches.
2. Leech Seed helps drain an enemy Pokemon.
3. Earthquake is for STAB and helps counter Fire-types when possible.
4. Wood Hammer happens to be a good Physical attack. Because of recoil, Leftovers has to be the priority item.

3. Godot (Registeel) @ Leftovers (252 HP, 252 Def, 6 SpDef) [Steel]
Ability: Clear Body
Nature: Careful [So he doesn't spill his coffee]
Moveset:
1. Thunder Wave; Electric
2. Stealth Rock; Rock
3. Shadow Claw; Ghost
4. Iron Head; Steel
Function in the Team
Initially I wanted Registeel to be my Lead. However, I realized that it would be an issue, as his design overall is not very offensive, instead very defensive. He is kept on the team as he does reasonably well in combat.
However, none have beaten him as the foundation for my entire team. Because of my desire to have Registeel be the Team Captain, I designed my team to have a counter to Fire, Fighting, and Ground moves and Pokemon of these attributes.
Reasons Behind Movepool
1. Because Registeel is not my Lead, I don't really require for him to have Stealth Rock. He will instead use Thunder Wave.
2. Counter is nice, but with more RapidSpinners being present in UU I will need a second Stealth Rock.
3. Alakazam, Mismagius, and others are reasonably frail to the point where a Shadow Claw could OHKO them.
4. Iron Head is the obligatory STAB move that, against slower Pokemon, also has a chance to cause flinch.

4. Crash Man (Swellow) @ Flame Orb (255 Atk, 255 Spe) [Normal/Flying]
Ability: Guts
Nature: Jolly
Moveset:
1. Brave Bird; Flying
2. U-turn; Bug
3. Protect; Normal
4. Facade; Normal
Function in the Team
Swellow was one of the additions that replaced a Ursaring with a similar itemset (it was Adamant instead of Jolly).
Now he helps against Ground-types (alongside Ludicolo) as well as Physical Sweeping in general.
Reasons Behind Moveset
1. Brave Bird is STAB. With Swellow's decent Attack, it can OHKO the Ghost-types who resist everything else usually.
2. U-turn helps with scouting and denting Rock-types before they can kill Swellow.
3. Protect guarantees the burn effect necessary for the entire setup.
4. Facade is the main reason for the entire set. Against non-Ghosts, it usually slays them instantly.

5. VonKarma (Milotic) @ Leftovers (252 HP, 200 Def, 58 SpDef)
Ability: Marvel Scale
Nature: Calm
Moveset:
1. Surf; Water
2. Ice Beam; Ice
3. Recover; Normal
4. Toxic; Poison
Function in the Team
Absol and Toxicroak both failed at being Physical Sweepers. Absol is just too slow without a Choice Scarf, even for UU, and Toxicroak was too rain-dependent with Dry Skin.
Milotic ultimately serves as my best counter to Fire-type Pokemon. She will whip Arcanine and Houndoom to shreds should they try to stay on her.
Reasons Behind Movepool
1. Surf is for STAB.
2. Ice Beam counters Grass-types
3. She needs recovery to do well, otherwise the whipping will be stopped.
4. Toxic causes poison for some switch-ins.

6. Kombatant (Heracross) @ Flame Orb (255 Atk, 255 Spe) [Bug/Fighting]
Ability: Swarm
Nature: Jolly
Moveset:
1. Facade; Normal
2. Close Combat; Fighting
3. Night Slash; Dark
4. Swords Dance; Normal
Function on the Team
I don't see why Shedinja is NU, so I promoted him to an Ubers team where he does much better.
Meanwhile, my favorite type is Bug. Generally, I like to have at least one Bug-type in my team. Heracross is probably the best UU bug with Butterfree and Venomoth being close seconds (I remember successfully using a Butterfree as a Lead in OU for a while before switching it to a Jirachi!).
Reasons Behind Movepool
1. Well, now that Heracross is UU, I expect to see him a lot. With Guts and Flame Orb, a Facade will kill just about anything.
2. Disregard Brick Break, for Close Combat deals more damage.
3. Night Slash counters the Ghosts and Psychics often found in UU.
4. Swords Dance boosts its already-high Attack to make it kill anything for good.
It took me a while to finalize my group. Feel free to rate it. I will find a means to get sprites for all my mons by lurking in other RMTs for them. I'll have to look REALLY hard for Shedinja's sprite by the looks of things.
EDIT 1: Several changes while undergoing more testing. RestTalk Milotic had been tried once where it epicly failed. Not only this, but on Pokemonexperte where Heatran SleepTalkers. Ludicolo is replaced with Torterra for Lead spot. Toxicroak is replaced with Heracross. Shedinja got promoted to an Ubers team and in its stead is Milotic. For consistency, all changes will be in blue.
EDIT 2: VonKarma and Kombatant have their movepools and stuff reorganized. Kombatant now provides flawless victories. Wizardheimer also has Expert Belt back, and Registeel has Stealth Rock back.
EDIT 3: Registeel and Torterra both have changes in EV spread. I also updated Swellow's moveset.
EDIT 4: Uxie replaces Alakazam in my party. How unsurprising, considering that Alakazam is too frail to be useful. I'm surprised Alakazam hasn't dropped to NU already.