Rate this Nat Dex AG team

Question

Deoxys-Speed @ Focus Sash
Ability: Pressure
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Psychic
- Shadow Ball
- Flash Cannon
- Energy Ball

Necrozma-Dusk-Mane @ Leftovers
Ability: Prism Armor
EVs: 128 HP / 252 Atk / 128 SpD
Adamant Nature
- Sunsteel Strike
- Photon Geyser
- Earthquake
- Morning Sun

Darkrai @ Life Orb
Ability: Bad Dreams
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Dark Void
- Dark Pulse
- Nasty Plot
- Psychic

Arceus-Fairy @ Pixie Plate
Ability: Multitype
EVs: 252 HP / 252 SpA / 4 SpD
Modest Nature
IVs: 0 Atk
- Judgment
- Recover
- Shadow Ball
- Dragon Pulse

Groudon-Primal @ Red Orb
Ability: Desolate Land
EVs: 252 HP / 252 Atk / 4 SpD
Adamant Nature
- Precipice Blades
- Bulk Up
- Fire Punch
- Iron Head

Marshadow @ Life Orb
Ability: Technician
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Shadow Sneak
- Drain Punch
- Spectral Thief
- Bulk Up

Comments

This needs some work. Deoxys speed isn’t an attacker, it’s a lead meant to set screens/hazards and use taunt and magic coat. Your NDM set is weird. 252 HP 252 Def 4 Atk and an Impish nature would be better to check Zacian, and Photon Geyser is outclassed on a defensive Pokémon. Stealth Rocks work there if you don’t use Deoxys Speed as a hazard setter, something like Knock Off otherwise. Darkrai is unviable and outclassed by Yveltal. The Arceus-fairy set is weird, so is the Pdon set. Close Combat and Poltergeist are better than Spectral Thief and Drain Punch.

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Why run Defensive NDM and FairyCeus with a suicide lead (Deoxys-S)?