B2W2 Ubers Team

So, I've been using this team on Showdown! for a while, and I pretty much always win when I use it. A quick overview of the team is:
Wall Dialga
Physical Attacker Kyurem-B
Sweeper Darkrai
ExtremeKiller Arceus
Wall Forretress
Wall Giratina

That's the basic idea, now the actual sets:



Dialga @ Leftovers
Ability: Pressure
EVs: 252 HP / 4 SpAtk / 252 SpDef
Calm Nature
- Stealth Rock
- Roar
- Thunder Wave
- Draco Meteor

Pretty normal Dialga. First turn it sets up Stealth Rocks, then it cripples the opponent with T-Wave. After that you can Roar it out into something that you can either cripple or Draco. It's special defensively invested because no one really expects it, and because of the number of lead Kyogres.

252+ SpA Choice Specs Kyogre Water Spout vs. 252 HP / 252+ SpDef Dialga in rain: 242-285 (59.9-70.54%) -- guaranteed 2HKO



Kyurem-B @ Choice Scarf
Ability: Teravolt
EVs: 252 Atk / 252 Speed / 4 HP
Adamant Nature
- Outrage
- Fusion Bolt
- Stone Edge
- Sleep Talk

Standard Scarf Kyurem-B. In my opinion, Black Kyurem can't function in Ubers without a Scarf; 95 Speed isn't enough. It can also switch in on Darkrai, then Sleep Talk and hope for the Outrage.



Darkrai @ Life Orb
Ability: Bad Dreams
EVs: 252 Speed / 252 SpAtk / 4 SpDef
Timid Nature
- Dark Void
- Nasty Plot
- Dark Pulse
- Focus Blast

It comes in, puts something to sleep, and then proceeds to set up a Nasty Plot on the switch/sleep turn. It outspeeds most the tier, barring Scarfed Pokes and a few other Pokémon.



Arceus @ Life Orb
Ability: Multitype
EVs: 252 HP / 252 Atk / 4 Speed
Adamant Nature
- ExtremeSpeed
- Earthquake/Shadow Claw
- Recover
- Swords Dance

ExtremeKiller Arceus. One of the greatest terrors in the metagame. There's not much I can say about it. I just come in on pretty much anything, absorb a hit, set up a Swords Dance or two or three and sweep.

ESpeed + Shadow Claw has good coverage but fails to hit Steel types. ESpeed + Earthquake hits Steel types but fails to hit Gengar and Giratina-O. Which one should I use?



Forretress @ Leftovers
Ability: Sturdy
EVs: 252 HP / 252 Def / 4 SpDef
Bold Nature
- Rapid Spin
- Toxic Spikes
- Spikes
- Pain Split

It spins and sets up hazards and... does really nothing else.



Giratina-A @ Leftovers
Ability: Pressure
EVs: 252 HP / 252 SpDef / 4 Atk
Careful Nature
- Dragon Tail
- Rest
- Sleep Talk
- Will-O-Wisp

I realized that Giratina-A had AMAZING bulk, so I tested it out a bit and it was awesome. It can live any special attack from pretty much anything in the tier. Just to show you how amazing it is, here's some calcs:

252+ SpA Kyurem-W Draco Meteor vs. 252 HP / 252 SpD Giratina: 428-506 (84.92 - 100.39%) -- 6.25% chance to OHKO
252+ SpA Choice Specs Kyogre Ice Beam vs. 252 HP / 252 SpD Giratina: 264-312 (52.38 - 61.9%) -- 98.05% chance to 2HKO
252+ SpA Life Orb Mewtwo Ice Beam vs. 252 HP / 252 SpD Giratina: 234-278 (46.42 - 55.15%) -- 11.72% chance to 2HKO

Importable:

Spoiler

Dialga @ Leftovers
Ability: Pressure
EVs: 252 HP / 4 SpAtk / 252 SpDef
Calm Nature
- Stealth Rock
- Roar
- Thunder Wave
- Draco Meteor

Kyurem-B @ Choice Scarf
Ability: Teravolt
EVs: 252 Atk / 252 Speed / 4 HP
Adamant Nature
- Outrage
- Fusion Bolt
- Stone Edge
- Sleep Talk

Darkrai @ Life Orb
Ability: Bad Dreams
EVs: 252 Speed / 252 SpAtk / 4 SpDef
Timid Nature
- Dark Void
- Nasty Plot
- Dark Pulse
- Focus Blast

Arceus @ Life Orb
Ability: Multitype
EVs: 252 HP / 252 Atk / 4 Speed
Adamant Nature
- ExtremeSpeed
- Earthquake/Shadow Claw
- Recover
- Swords Dance

Forretress @ Leftovers
Ability: Sturdy
EVs: 252 HP / 252 Def / 4 SpDef
Bold Nature
- Rapid Spin
- Toxic Spikes
- Spikes
- Pain Split

Giratina-A @ Leftovers
Ability: Pressure
EVs: 252 HP / 252 SpDef / 4 Atk
Careful Nature
- Dragon Tail
- Rest
- Sleep Talk
- Will-O-Wisp

So that's my team. What do you guys think about it?

 

Well, Blazikens aren't really common in Ubers, but the occasional one does come along once in a while. I usually switch into Arceus, which completely disregards Speed Boosts with priority in the form of ExtremeSpeed.

HI Jump Kick OHKOs Arceus, though, which is a problem, and ESpeed isn't an OHKO. So I can switch Arceus in on a Flare Blitz, get recoil damage, SD on the Protect, then ESpeed. That takes care of Blaziken, and with the +2 Attack under my belt I can proceed to sweep as well.