National Dex National Dex Ubers Team, help me

[ProkeTheMonkey]

Latias-Mega @ Latiasite
Ability: Levitate
Tera Type: Dragon
EVs: 252 HP / 4 Def / 252 Spe
IVs: 0 Atk
- Psychic
- Draco Meteor
- Thunder Wave
- Roost
very fast,
I use this to paralize and switch to another pokemon mostly,
major downside is that it is not very good for dammaging

Groudon-Primal @ Red Orb
Ability: Desolate Land
Tera Type: Ground
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Rock Polish
- Precipice Blades
- Swords Dance
- Heat Crash
Really good overall
Swords Dance and Rock Polish work well together
I have a really hard time with Groudon because at certain points, he just dies and I don't get much value

Calyrex-Ice @ Weakness Policy
Ability: As One (Glastrier)
Tera Type: Psychic
EVs: 248 HP / 252 Atk / 8 SpD
Brave Nature
- Trick Room
- Glacial Lance
- Swords Dance
- High Horsepower
Crazy for attacking and can one shot a full team
Abillities really make this pokemon strong
Major problem is it can get one shotted very easily and I don't have much counter to that

Zygarde @ Groundium Z
Ability: Power Construct
Tera Type: Dragon
EVs: 252 HP / 252 Def / 4 SpD
- Coil
- Thousand Arrows
- Rest
- Glare
Either really good or really bad
I have a huge problem every time I use rest
Really strong if used correctly

Kyogre-Primal @ Blue Orb
Ability: Primordial Sea
Tera Type: Water
EVs: 4 Def / 252 SpA / 252 Spe
Serious Nature
- Origin Pulse
- Ice Beam
- Thunder
- Calm Mind
very strong combo
doesn't have enough attack though
when used at the right time, this pokemon is super strong

Necrozma-Dusk-Mane @ Ultranecrozium Z
Ability: Prism Armor
Tera Type: Psychic
EVs: 24 HP / 252 Atk / 92 Def / 140 Spe
Adamant Nature
- Dragon Dance
- Photon Geyser
- Earthquake
- Stone Edge
Really strong after 3 turns
Only really good after i use the z move
really hard to make Necrozma very powerful

 

[Pengu]

Hey ProkeTheMonkey, so your thread doesn't get locked you should have at least 3 lines of explanation for each Pokemon on the team.
-What they provide for the team
-What the set does
-Downsides
-Upsides
Just some ideas to help you.

 

[Sami]

No nature? Also Mega Latias is simply outclassed by Mega Latios, which is also partially outclassed by Giratina-O (apart from Flip Turn and I guess Future Sight). I don't think it fits on this very offense oriented team either since it is a very big momentum sink.

Double Dance is better suited for Hyper Offense teams and not these kinds of structures. You're better off using Utility Swords Dance or Offensive Support sets, especially since this team is lacking hazards.

Weakness Policy is pretty meh in the tier, and trying to setup both Trick Room AND Swords Dance with this thing is very difficult. It's Tera Type should Water, not Psychic. You're better off using the Choice Band set, and even then I don't think Calyrex-I is a good pick here, something like an Arceus forme would probably be better.

No nature? Also why Groundium Z? This isn't Dragon Dance Zygarde so Leftovers is simply better to wall things easier.

Serious Nature. Other than that it's fine.

Good, but just like Primal Groudon it's better suited to HO structures - Dragon Dance NDM would probably be better and easier to setup with, especially since Ultra Necrozma loses hard to Arceus-Dark, who threatens everyone on the team.

https://pokepast.es/87002aa218165511 Replacing Mega Latias with Arceus-Fairy lets you handle Yveltal, Arceus-Dark and Marshadow more easily while still being decent against Dragon-types such as Mega Salamence. It's also got Defog to remove hazards which your team lacked beforehand. Choice Band Calyrex-I has Trick to ruin switch-ins like Defensive Necrozma-DM or Dondozo, while Aromatherapy helps Zygarde and Arceus-Fairy with status conditions. Solganium Z NDM is better than Ultra Necrozma because it is bulkier while being able to beat Arceus-Dark more reliably with its Z-Move compared to Ultra Necrozma, while being a somewhat decent switch-in to Zacian-C alongside Primal Groudon, who has Stealth Rock now.

https://pokepast.es/da9389b281760bc4 Alternatively, this second team replaces Mega Latias with Mega Latios:

Mega Latios EV spread explained

* The first spread, combined with a Timid nature, outspeeds everything up to Modest Palkia-O and Adamant Mega Salamence, allowing Mega Latios to quickly Flip Turn out of most bad matchups, most notably including Yveltal. This Speed is also handy to allow Mega Latios to KO weakened Yveltal, Primal Groudon, and support Arceus formes as well as Rayquaza, unboosted Mega Salamence, and the aforementioned Palkia-O. The Defense investment avoids an OHKO from +1 Adamant Ultra Necrozma's Light That Burns the Sky, allowing Mega Latios to check it in a pinch. However, this spread is reliant on outspeeding foes and not having taken prior damage to check most things.