CETITAN One Shot (3-players strat) VENUSAUR 7 star tera raid in Pokemon Scarlet and Violet 

Here is a 3-players strat against the Venusaur 7 star tera raid!
Have fun! :)
*Build:*
Gliscor (M) @ Wide Lens
Ability: Poison Heal
Tera Type: Ice
EVs: 252 HP / 252 SpD / 4 Spe
Careful Nature
IVs: 0 Atk
- Screech
- Mud-Slap
- Rain Dance
- Struggle Bug
Masquerain @ Covert Cloak
Ability: Intimidate
Tera Type: Steel
EVs: 252 HP / 252 SpD / 4 Spe
Calm Nature
IVs: 0 Atk
- Helping Hand
- Struggle Bug
- Haze
- Psych Up
Cetitan @ Shell Bell
Ability: Thick Fat
Tera Type: Ice
EVs: 252 Atk / 4 Def / 252 SpD
Adamant Nature
- Avalanche
- Belly Drum
- Amnesia
- Ice Punch
And here is the strat:
Masquerain:
- starts first with Haze on Venusaur
- then Struggle Bug on Venusaur to lower the special attack stats
- Psych Up on Venusaur in the third round to copy the special defense stats
- Lifecheer
- Struggle Bug again until Cetitan is ready to attack Venusaur
- then make Helping Hand on Cetitan
Gliscor:
- 3x Screeches in the first three rounds
- then Rain Dance in the fourth round
- Struggle Bug on Venusaur too until Cetitan is ready to attack Venusaur
- then make one Attack Cheer
Cetitan:
- make nothing in the first round
- Life cheer in the second round
- now make Amnesia two times
- Belly Drum
- Life Cheer again if needed
- make 3x Ice Punches on the NPC to unlock your tera
- wait for the support (you need a attack cheer and Helping Hand)
- now terrastalise and make one Avalanche on Venusaur to destroy the raid