Please rate my gen 9 Ubers Hyper offence team

Question

Necrozma-Dusk-Mane @ Leftovers
Ability: Prism Armor
Tera Type: Psychic
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Psychic Fangs
- Knock Off
- Stealth Rock
- Iron Head

Iron Bundle @ Booster Energy
Ability: Quark Drive
Tera Type: Ice
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Hydro Pump
- Ice Beam
- U-turn
- Chilling Water

Arceus @ Silk Scarf
Ability: Multitype
Tera Type: Normal
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Extreme Speed
- Swords Dance
- Earthquake
- Iron Head

Chien-Pao @ Choice Band
Ability: Sword of Ruin
Tera Type: Dark
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Crunch
- Ice Shard
- Ice Spinner
- Psychic Fangs

Zacian-Crowned @ Rusted Sword
Ability: Intrepid Sword
Tera Type: Fairy
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Behemoth Blade
- Close Combat
- Play Rough
- Swords Dance

Kyogre @ Choice Scarf
Ability: Drizzle
Tera Type: Water
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Water Spout
- Ancient Power
- Ice Beam
- Thunder
Necrozma Dusk-Mane
I use Necro D to set up rocks and deal high damage honestly I could use scarf and be a fast rock setter and have an offensive presence later but passive recovery is also very good
Iron Bundle
Iron Bundle is used to deal damage and have a lot of utility with chilling water and u turn
Arceus
Arceus is a fast setup sweeper and is used for wall breaking and is not good for burns
Chien
Chien rarely gets used but is a strong Wall breaker
Zacian
Is a fast bulky setup wallbreaker and sweeps with one swords dance
Kyogre
Scarf kyogre is one of the strongest Pokemon in Ubers and sweeps with water spout and ice beam for grass types who wall kyogre

Answer 1

1. Necroz DM always should have a way of recovery. Even though its ludicrously bulky in itself, a slot for morning sun wouldn't hurt. There is physically no need for iron head due to the existence of Sunsteel Strike, and you could replace psyfangs for Morning Sun. The EVs used are also weird as DM necroz usually is used defensively, 252 HP and another stat of your choice being 252 maxed. Tera fairy or dragon is also a lot better.
2. There is no need for u-turn on Iron Bundle when you can use flip turn for a tiny bit of extra damage due to stab, you also have no way to hit water types on bundle, therefore I would say to remove chilling water for freeze dry. And also if you're going for booster Bundle, you can use substitute as well since you're going to try and maximize the effects of booster. Else if you don't want substitute, you can just go HDB or specs like the rest of the world.
3. This is fine, iron head has no coverage on arceus though. I would go for shadow claw to hit ghosts instead, or recover for easier setups.
4. Completely fine. Psyfangs doesn't really hit anything however, so I would go sacred sword to hit pao mirror matches.
5. Completely fine.
6. Ancient power can be replaced with origin pulse to hit for damage when you are low on hp.

All in all I don't see a lot of synergy between the mons, it looks like just 6 strong mons crammed together since its just wallbreaker and setup sweepers with a single offensive pivot and defensive pivot. You're even cramming your offensive pivot and speed control into a single mon which is kind of not satisfactory.