Hyperoffense Mega Chandelure team

https://pokepast.es/2db6999c0252f439

With the addition of Light Clay and Grimmsnarl, Mega Chandelure's Infiltrator ability might finally be able to shine, so I'm continuing to try and make this gorgeous mon happen

In this first iteration of the season I'm going for hyperoffense with Metagross as a strong secondary mega that also can handle screens if needed

The cat duo is there for fake out support and strong coverage - Ice comes in handy against Garchomps and Staraptors, Knock Off against Sinistchas, Gholdengos and Annihilapes etc, while Sneasler deal with Archaludon, Grimmsnarl and the fairies.

Sinistcha is a great glue to any team.

Now my doubts:
I'm back and forth with the final slot. Dragonite as a tailwind setter always sounds cool to me, and I put Life Orb on him because Life Orb Extreme Speed sounds fun - but didn't test it yet or anything lol

I first had Light Clay Sableye there instead to set up my own screens and provide will-o-wisp/quash/encore support and typing this now it still sounds like better option than Dnite, but I do feel like I should have a Tailwind user.

Whimsicott is another amazing option, giving me not only Tailwind and several support options but also fairy type coverage, which this team is lacking and is probably more valuable than the dragon type coverage Dnite is providing. With Weavile there, not sure I really need any of that though.

Than there's Aerodactyl, that gives me STAB Rock Slide, very needed flying type coverage, Tailwind and Wide Guard.

And here's come the main issue: Aero and Whimsy sounds amazing, but both really need Focus Sash, that Weavile can't really go without.

Dnite have its natural Sash with Multiscale, but he's weak against common leads like Whimsicott, Grimmsnarl and any Encore users.

If anyone has suggestions on what to do with this final slot (I'm open to replacing Weavile if it comes to that too), let me know please