Please Rate my Doubles Team(Ubers)!

Question

I wanted to make a Doubles Team that revolved around the powerhouse that is Xerneas. I'm fairly new to the Competitive scene, and it's been a looong time since I actually built a team. Please let me know if there's anything I could change or do to improve my team! Thanks!

P.S. I've had a hard time dealing with both Primal Kyogre and Primal Groudon(mainly Primal Groudon), and Mega Diancie.

Divinity (Xerneas) @ Power Herb
Ability: Fairy Aura
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Geomancy
- Dazzling Gleam
- Moonblast
- Protect

Fidelity (Aegislash) (M) @ Weakness Policy
Ability: Stance Change
EVs: 252 HP / 252 SpA / 4 SpD
Quiet Nature
- Shadow Ball
- Flash Cannon
- Wide Guard
- King's Shield

Insidious (Amoonguss) (M) @ Rocky Helmet
Ability: Regenerator
EVs: 252 HP / 172 Def / 84 SpD
Relaxed Nature
- Rage Powder
- Spore
- Giga Drain
- Protect

Resentment (Sableye) (M) @ Sitrus Berry
Ability: Prankster
EVs: 252 HP / 72 Def / 184 SpD
Impish Nature
- Will-O-Wisp
- Quash
- Foul Play
- Recover

Accolade (Talonflame) (M) @ Life Orb
Ability: Gale Wings
EVs: 252 Atk / 4 Def / 252 Spe
Adamant Nature
- Brave Bird
- Flare Blitz
- Tailwind
- Protect

Carnage (Mawile) (F) @ Mawilite
Ability: Intimidate
EVs: 252 HP / 252 Atk / 4 SpD
Adamant Nature
- Play Rough
- Iron Head
- Sucker Punch
- Protect

Answer 1

Mega Mawile should take care of any difficulty with Mega Diancie and you have Aegislash as a back up and you could have at least one of your Pokemon know a ground type move maybe (M) Mawile and pair it up with Talonflame in case you use Earthquake to take on (P) Groudon and idk about (P)Kyoger. Hope this was helpful.

Comments

Any help is appreciated! Thanks a bunch! I've never really considered a Ground-type/Rock-type Attack, and I feel like I'm lacking in Water-type attacks that can cover more than just Primal Groudon.