Would this Nuzlocke plan work for Raihan?

Question

I am doing a Fairy Monolocke, and I am concerned about Raihan. Would this plan in theory work to beat him?

---

Turn 1

Togekiss out speeds and Moonblasts and OHKOs Flygon (Note: Togekiss will need Spd EV training. Primarina sets up Reflect.

Turn 2

Togekiss protects while Primarina OHKOs both Gigalith and Sandaconda with Surf. (Note: Primarina will also need Spd EV training)

Turn 3

Primarina swaps into Rapidash that is holding Babiri Berry. Togekiss Aura Spheres Duraldon. (Note: Togekiss is holding Babiri Berry)

Turn 4

Togekiss and Rapidash outspeed and KO Duraldon with Aura Sphere and Drill Run.

Comments

That will always work with overleveling

---

I am playing with level cap

Answer 1

Make every team member hold a Babiri Berry, except Primarina. Give Primarina a Wacan Berry for Flygon's Thunder Punch. Surf's damage is lowered in Double Battles because it targets multiple opponents, so if it doesn't OHKO Gigalith (it'll get Sandaconda, but Gigalith gets the Special Defense boost from Sandstorm), Aura Sphere it with Togekiss and switch out Primarina.

Dynamax Togekiss and attack Duraludon with Max Knuckle (Togekiss) and Drill Run (Rapidash-Galar). If it doesn't KO, you'll probably be fine, and you can KO next turn.

It probably won't be nearly as complicated as this. Raihan is actually fairly easy due to EXP Candies and SwSh just being general pushovers, but your plan is solid and you'll be able to pull through with no deaths.