Rate my gen 7 Ubers team

Question

Arceus-Fairy @ Pixie Plate
Ability: Multitype
EVs: 252 HP / 4 Def / 252 Spe
Timid Nature
- Calm Mind
- Judgment
- Earth Power
- Recover

Kyogre @ Blue Orb
Ability: Drizzle
EVs: 32 HP / 124 Def / 200 SpA / 152 Spe
Modest Nature
IVs: 0 Atk
- Calm Mind
- Origin Pulse
- Ice Beam
- Thunder

Necrozma-Dusk-Mane @ Leftovers
Ability: Prism Armor
EVs: 252 HP / 4 Def / 252 SpD
Careful Nature
- Stealth Rock
- Toxic
- Sunsteel Strike
- Morning Sun

Yveltal @ Choice Scarf
Ability: Dark Aura
EVs: 4 Atk / 252 SpA / 252 Spe
Modest Nature
IVs: 0 Atk
- Foul Play
- Dark Pulse
- Oblivion Wing
- Defog

Groudon @ Red Orb
Ability: Drought
EVs: 252 SpA / 100 SpD / 156 Spe
Mild Nature
- Rock Polish
- Precipice Blades
- Fire Blast
- Hidden Power [Ice]

Salamence @ Salamencite
Ability: Intimidate
EVs: 44 HP / 252 Atk / 212 Spe
Adamant Nature
- Dragon Dance
- Double-Edge
- Roost
- Earthquake

Comments

Some short advice:

Use Return on Salamence rather than Double Edge. Use Substitute instead of Roost.

Don't Scarf Yveltal. :P

Solar Beam or Stone Edge will suit Groudon Better than HP Ice. :P

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I recommend switching necrozma with Lugia. Lugia is a monster of a capable of dealing damage and taking a lot of hits

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I have necrozma because of xerneas.

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Also Lugia is one of the most passive Pokemon in the metagame. Not really what I'd describe as a damage dealer.