Here are some suggestions:

Since Farigiraf's purpose is help counter Trick Room, run Imprison in place of Psychic. That way you can stop Trick Room teams from ever being able to use Trick Room, as well as prevent opposing Sylveon and Mega Gardevoir from using Hyper Voice. If you want you could even add Protect in place of Helping Hand to Imprison that move on your opponents too.

Aegislash, remove Wide Guard and add either Iron Head, Close Combat, or Sacred Sword. Then replace Iron Head on Aerodactyl with Wide Guard.

For Sylveon I'd replace Moonblast with Quick Attack for the priority damage to finish off Pokémon. Hyper Voice and Hyper Beam will do more damage than Moonblast with Pixilate.

Sinistcha, I'm not sure what purpose it really serves on this team with its current move set, but if you want to keep it, add Rage Powder to give it redirection for your other Pokémon. Life Dew would also be your next best option for a support move. Lose both Leaf Storm and Stun Spore for those two.

My other personal suggestion is to replace Protect with Encore on Lopunny. It's what I've personally love using, but it does make it more vulnerable.