Gen V Ubers

[Nanobyte]

This is the team I'm using on Pokémon Showdown. It seems to do okay, but I keep finding that it has a lot of weaknesses. Could someone help me make my team better?

Mewtwo @ Leftovers
Ability: Pressure
EVs: 252 Def / 252 HP / 4 SDef
Bold Nature
IVs: 0 Atk
- Calm Mind
- Recover
- Barrier
- Ice Beam

Excadrill @ Metal Coat
Ability: Sand Rush
EVs: 252 Spd / 252 Atk / 4 HP
Adamant Nature
IVs: 0 Atk
- Earthquake
- Iron Head
- Brick Break
- Swords Dance

Forretress (M) @ Occa Berry
Ability: Overcoat
Shiny: Yes
EVs: 252 Def / 252 HP / 4 SDef
Bold Nature
- Rapid Spin
- Spikes
- Toxic Spikes
- Stealth Rock

Zekrom @ Leftovers
Ability: Teravolt
EVs: 252 Atk / 252 HP / 4 SDef
Adamant Nature
IVs: 0 Atk
- Bolt Strike
- Dragon Claw
- Dragon Tail
- Crunch

Arceus @ Silk Scarf
Ability: Multitype
EVs: 252 Atk / 252 HP / 4 SDef
Adamant Nature
- Extreme Speed
- Overheat
- Shadow Claw
- Recover

Kyogre @ Leftovers
Ability: Drizzle
EVs: 252 SAtk / 252 HP / 4 SDef
Modest Nature
IVs: 0 Atk
- Calm Mind
- Sleep Talk
- Water Spout
- Thunder

 

[Reymedy]

Hello.

Your team lacks descriptions. I invite you to read the rules carefully and to PM me an improved version of the team. Then I'll unlock the thread.

Have a nice day.