Please help me improve my Offensive Gen 9 NatDex Team

Question

The team:

Megacham (Medicham-Mega) @ Medichamite
Ability: Pure Power
Tera Type: Fighting
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Bullet Punch
- Bulk Up
- Psycho Cut
- Close Combat

A setup sweeper that after just 2 Bulk Ups, hits almost 1200 Atk. CC for STAB OHKOing everything in the format, and Psycho Cut for alternate STAB, to hit everything resisting Fighting. A problem is with this is that it can be outsped and KOed by any speedy Pokemon.
Bullet Puch was added because I struggle with Mega Lopunnies, so I wanted a way to surprise KO after chip from, eg:

Aloamomoalao (Alomomola) @ Rocky Helmet
Ability: Regenerator
Tera Type: Steel
EVs: 252 HP / 252 Def / 4 SpD
Impish Nature
- Flip Turn
- Toxic
- Wish
- Protect

Defensive pivot, and the team's source of healing. Standard Mola set, Helmet chips physical attackers when switching in, Toxic to neutralise set up + wall Pokemon.

Elsa (Ninetales-Alola) @ Light Clay
Ability: Snow Warning
Shiny: Yes
Tera Type: Fire
EVs: 252 HP / 4 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Aurora Veil
- Blizzard
- Encore
- Heal Bell

I usually lead this. An Aurora Veil supporter pairing extremely well with Mola, reducing damage and removing conditions for it, whilst being able to come in more safely with its Flip Turn. Blizzard for damage, and I have been in games where I have bluff Veiled against a 4x Ice weakness switch, then OHKOed when they stay in next time. Encore to punish Subs and set-ups.

Hat boi (Ting-Lu) @ Leftovers
Ability: Vessel of Ruin
Tera Type: Dark
EVs: 252 HP / 4 Def / 252 SpD
Careful Nature
- Stealth Rock
- Spikes
- Ruination
- Earthquake

My Specially Defensive pivot. If I had to change one Pokemon in my team, I would change this, as it doesn't do as much as the other members. It has still been useful to bait in hazard clearers though.

Nice mohawk (Tapu Koko) @ Choice Specs
Ability: Electric Surge
Tera Type: Electric
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Dazzling Gleam
- Volt Switch
- Thunderbolt
- Hidden Power [Fire]

Was a mediocre SpA sweeper until I gave it HP Fire, letting it surprise KO Ferrothorn that I was struggling with before. Now it does a solid 60% to anything not resisting Volt Switch, along with pivoting, or 2HKOing with T-bolt. Gleam for second STAB. Additionally setting up Terrain for:

Quaking Earth (Iron Treads) @ Steelium Z
Ability: Quark Drive
Shiny: Yes
Tera Type: Stellar
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Rapid Spin
- Steel Roller
- Earthquake
- Knock Off

Physical revenge killer and hazard remover: Steel Roller just for Corkscrew Crash as it often 1-shots at neutral -1 Atk. Still useable when against Rillaboom, other Tapus or in Mohawk's terrain. Knock Off to punish switches, and Earthquake for secondary STAB. A really good lead against Ferrothorn, Knock Off to remove its annoying item, and Earthquake to get it low and force it out.

My main problem is that my Pokemon synergise too well together; if one faints, my team falls apart.

Things I would like:
- A better answer for Mega Lopunny
- Having a faster Mega
- Having a Specially Defensive pivot that can actually pivot, and contribute
- A way for my team to still function if one of its pieces faints.

Comments

Yes, I do realise that Terastallisation isn't in NatDex, but I didn't know that when building the first iteration of this, so I have the older ones of this team with specialised Tera Types.

Answer 1

Here are the changes I came up with after some testing:

You wanted a better Mega Lopunny answer and a faster mega, so I added Mega Gallade instead of Mega Medicham

Mega Gallade @Galladite
Ability: Inner Focus
EVs: 252 Atk / Sp. Def. 4 / 252 Spd
Jolly Nature
-Psycho Cut
-Close Combat
-Shadow Sneak
-Swords Dance

Most Mega Lopunnys like to use Fake Out, which doesn't work on Mega Gallade due to it's Inner Focus ability, plus it threatens it with both of it's STABs. I also gave it Shadow Sneak for priority and Swords Dance for set up.

For a Sp. Def pivot, I found that Vaporeon works quite well at this even without Sp. Def investment.

Vaporeon @Rocky Helmet/Leftovers
Ability: Water Absorb
EVs: 248 HP / 252 Def / 8 Sp. Def
Relaxed Nature
-Flip Turn
-Scald
-Wish
-Protect

Vaporeon does what you added Alomamola for but it trades some longevity for extra utility in Scald Burns and a Water immunity.

I hope these changes help your team out.

Comments

By the viability rankings, which were last updated a month ago, Alomomola is A+ wile Vaporeon isn't even listed. I think making this change warrants significantly more explanation than that.

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Viability rankings don't always tell the whole story, normally bad pokemon can work on the right team, and Vaporeon has exactly what the OP was asking for: a Sp Def pivot.

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Why did you choose Vaporeon over Slowking-Galar?

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They would be too weak to Ground

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In that case, why not Tornadus-T?

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Then there's no wish passer.

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I mean sure, but it's not like Wish is non-negotiable. You don't have to replace a pokemon 1:1, and I don't think Vaporeon's advantages outweigh its relative passivity, weakness to common Pokemon, and having to give up Pokemon that do the job better.

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If you think my suggestion is bad, you should probably post an answer of your own to help the OP out

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Just because someone is pointing out flaws with your advice doesn't mean they have enough experience to post a full answer, especially if that person isn't well versed in a specific format. You can have enough experience with competitive or even just the game in general to be able to point out someone else's advice is strange or bad without having the experience to give your own suggestions for improvement. If someone doesn't have enough experience with the format, they could end up giving more harmful advice than good advice.

That being said, Amethyst may be a god at Gen 9 NatDex for all I know, but that's beside the point.

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I'm probably going to keep Mola, but I like the idea of Torn-T, what would be a good set for it?