Rate my Gen 8 Anything Goes team.

Question

Zacian-Crowned @ Rusted Sword
Ability: Intrepid Sword
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Behemoth Blade
- Crunch
- Wild Charge
- Play Rough

Necrozma-Dusk-Mane @ Rocky Helmet
Ability: Prism Armor
Shiny: Yes
EVs: 252 HP / 252 Def / 4 SpD
Impish Nature
- Stealth Rock
- Sunsteel Strike
- Stone Edge
- Morning Sun

Yveltal @ Leftovers
Ability: Dark Aura
EVs: 252 HP / 4 SpA / 252 SpD
Calm Nature
- Oblivion Wing
- Dark Pulse
- Defog
- Sucker Punch

Ditto @ Choice Scarf
Ability: Imposter
EVs: 252 HP / 4 Atk / 252 Def
Impish Nature
IVs: 30 Atk
- Transform

Groudon @ Leftovers
Ability: Drought
Shiny: Yes
EVs: 252 HP / 4 Def / 252 SpD
Careful Nature
- Swords Dance
- Thunder Wave
- Earthquake
- Stone Edge

Kyogre @ Choice Scarf
Ability: Drizzle
Shiny: Yes
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Water Spout
- Origin Pulse
- Ice Beam
- Thunder

This team I actually put some thought into. Dusk Mane is for Zacians and Dittos that copy my Zacian, Kyogre can also take on Zacians, Groudons, and Calyrex-Shadow as needed. Yveltal is a Defogger. Ditto can reverse sweep.
Concerns: Should I get a different Defogger?
Should I change item on Yveltal?
Assurance or Crunch on Zacian?
Should I swap Play Rough for a move like Substitute on Zacian?

Those are my concerns, some minor than others. Let me know what changes I should make. Thanks.

Comments

So primal shadow I personally think you should replace wild charge for sacred sword if not you'll be taking massive recoil damage because zacian's attack is so high even if the attack is resisted you will do a lot so take off wild charge for sacred sword and maybe put on swords dance or iron head

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maybe put dark gem on yveltal if you want to be dealing heavy damage for one oblivion wing

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After hitting NDM with Assurance it can survive Wild charge though :P Assurance not that good without close Combat.

Swastik said that I don't really know fully as I don't do Gen 8, but it seems valid :/
Take it as a grain of salt tho x)

And why both Sunsteel and Stone on NDM? Leave Ho-Oh killing to teammates, and swap Stone with something like Knock Off / TWave / Toxic

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And yessir change Yvel fully:

Yveltal @ Heavy-Duty Boots
Ability: Dark Aura
EVs: 252 HP / 4 Def / 252 SpD
Careful Nature
- Knock Off / Snarl
- U-turn
- Taunt / Defog
- Roost

HDB better than Lefties, this walls Cal-S more and is imo more viable.

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Okay. I'll try that.

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(Take this also as a grain of salt) And seeing the usage stats, Sub Zac-C ain't used much, but still, it maybe useful sometimes. And Swords Dance maybe ran over Play Rough, but that's your choice, as PR provides some valuable coverage.
EDIT: Silly potato me Sub is great against Ditto sooo it can be kept.

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@Soul Heart Why Secret Sword when it can Close Combat??