Doubles Ubers
Flutter Mane @ Booster Energy
Ability: Protosynthesis
Tera Type: Steel
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Dazzling Gleam
- Moonblast
- Shadow Ball
- Thunderbolt
Suss (Amoonguss) (M) @ Leftovers
Ability: Effect Spore
Shiny: Yes
Tera Type: Steel
EVs: 252 HP / 188 Def / 68 SpD
Sassy Nature
IVs: 0 Atk
- Substitute
- Pollen Puff
- Toxic
- Synthesis
Indeedee (Indeedee-F) @ Leftovers
Ability: Psychic Surge
Tera Type: Steel
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature
IVs: 0 Atk
- Heal Pulse
- Calm Mind
- Helping Hand
- Baton Pass
Calyrex-Shadow @ Weakness Policy
Ability: As One (Spectrier)
Tera Type: Normal
EVs: 4 Def / 252 SpA / 252 Spe
Modest Nature
IVs: 0 Atk
- Astral Barrage
- Nasty Plot
- Expanding Force
- Dark Pulse
Blissey @ Leftovers
Ability: Healer
Tera Type: Ghost
EVs: 252 HP / 252 Def
Impish Nature
IVs: 0 Atk
- Heal Bell
- Heal Pulse
- Helping Hand
- Life Dew
Miraidon @ Choice Scarf
Ability: Hadron Engine
Tera Type: Electric
EVs: 4 HP / 252 SpA / 252 Spe
Modest Nature
- Flash Cannon
- Thunderbolt
- Dragon Pulse
- Volt Switch
So this team is meant to have Miraidon, Calyrex (Shadow Rider) and Flutter Mane to attack, while the other Pokémon support them. I ran Blissey since it has slightly better stats for HP and speed and frees up the item. Amoonguss since it gets Pollen Puff and Toxic. Indeedee pairs up with Calyrex. Pyschic surge and Expanding Force is really good with 120 Power. Then there is helping hand. With 120 BP and Helping Hand, it can KO both opponents even with neutral damage. I played two games with this team and won both.