Is it good?

Groudon @ Rocky Helmet
Ability: Drought
Level: 50
Tera Type: Fairy
EVs: 36 HP / 172 Atk / 44 SpD / 252 Spe
Naughty Nature
- Precipice Blades
- Eruption
- High Horsepower
- Protect

Reuniclus @ Leftovers
Ability: Magic Guard
Level: 50
Shiny: Yes
Tera Type: Fighting
EVs: 4 HP / 124 Atk / 18 Def / 110 SpD / 252 Spe
Jolly Nature
- Gravity
- Knock Off
- Protect
- Ally Switch

Ogerpon-Wellspring (F) @ Wellspring Mask
Ability: Water Absorb
Level: 50
Tera Type: Water
EVs: 4 Atk / 168 Def / 204 SpD / 132 Spe
Jolly Nature
- Follow Me
- Ivy Cudgel
- Spiky Shield
- U-turn

Arcanine-Hisui @ Life Orb
Ability: Rock Head
Level: 50
Shiny: Yes
Tera Type: Flying
EVs: 196 Atk / 130 Def / 10 SpD / 172 Spe
Jolly Nature
- Head Smash
- Raging Fury
- Protect
- Wild Charge

Corviknight @ Covert Cloak
Ability: Unnerve
Level: 50
Shiny: Yes
Tera Type: Normal
EVs: 4 HP / 112 Atk / 164 Def / 228 Spe
Adamant Nature
- Brave Bird
- Dual Wingbeat
- Roost
- Tailwind

Electrode-Hisui @ Focus Sash
Ability: Static
Level: 50
Tera Type: Flying
EVs: 52 HP / 160 SpA / 44 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Protect
- Energy Ball
- Electroweb
- Leech Seed