Pokémon Violet - Unrivaled Sceptile 7-Star Crystal Raid Solo

Mighty Sceptile has finally arrived, and it is pretty easy as long as you have an Annihilape. It starts off with a Leaf Storm to one team member, then tries to set up with Dragon Dance to increase its Attack and Speed while lowering your Attack with Breaking Swipe. An Annihilape with Taunt is perfect for this.

Annihilape @ Shell Bell
Ghost Tera, not needed
Ability: Defiant
Adamant, 252 Attack, 252 HP
Screech
Bulk Up
Taunt
Rage Fist

With this battle, you do not even need to Terastalize. Start of with a Taunt so Sceptile doesn't Dragon Dance in the first few turns, then land a Screech. Once it nullifies your stats, go with Bulk Up, then you can use Rage Fist to win the battle.

As always, it helps to have some AI partners with an Intimidator. Staraptor is even better thanks to it having Featherdance.