Here are some more teams that I've for
sample submissions that are easy to pilot.
Some of them I haven't exactly used in a bit, so they may be a bit rusty those will be indicated with *. They should still work fine but change whatever you feel like needs to be.
https://pokepast.es/e95edbd40ba064d2
Defensive DD MAlt
This is a bulky offense built around Mega Altaria. Mega Altaria is something I've always wanted to try out in Nat Dex but haven't really gotten around to doing, until now. Here, it acts as a win condition with Dragon Dance; Refresh ensures that any status (bar a freeze or sleep XP) won't stop your sweep, along with Roost, to get multiple Dragon Dances. Magnezone takes care of Steels that Mega Altaria tends to struggle with like Corviknight, Scizor, and Ferrothorn, as its only attack is Frustration. Kartana provides hazard control, a check to Ground-types--as this team is quite weak to them otherwise because Lando-T has no recovery--, and an offensive check to Rain that can clean up late-game. Toxapex checks Fires and for the latter two, acts as the Greninja switch-in, and keeps set-up sweepers in check. Victini checks Mega Latias and Tapu Lele that could tear this team apart, for fun, otherwise. (Edit: You can replace Blue Flare for Searing Shot, but you lose out on power. [Sulo bullied me into doing it.]) And, Lando-T acts as the Stealth Rock setter and as the specially defensive pivot.
https://pokepast.es/60bc86bdeb0dd0e0
CM Fight Z Reuni Fat *
This is supposed to be a fat built around Calm Mind Fightinium Z Reuniclus. Reuniclus acts as a potent endgame cleaner after Weavile traps Psychics, which makes its attacks completely unresisted. Ferrothorn adds Spikes, making it harder to switch into Reuniclus's attacks. Toxapex with Toxic Spikes wears down Reuniclus's counters like Mega Sableye, but it can definitely be traded out for Toxic. Gliscor acts as the hazard control and Heatran check. Weavile takes care of Psychics by Pursuit trapping them, and, together, they weaken down each other's check like Corviknight. Heatran acts as the Stealth Rock setter and the Volcaona counter (bar HP Ground), it takes care of Steels.
https://pokepast.es/fec77ebcc1ddf970
Protect MTios + Lefties Melm *
This is an offense built around Protect Latios. Protect Latios (which is shamelessly stolen from Solaros & Lunaris) helps scout out Weavile for Pursuit. If they click it, which they often do, you stay in and click Aura Sphere, if they don't, you can easily switch out to Toxapex to counter it. Melmetal acts as an offensive switch into Ice-, Fairy-, and Dragon-type attacks. It also provides Thunder Wave, slowing down threats for Mega Latios like opposing Greninja and the aforementioned Weavile. Greninja provides Spikes support which allows Mega Latios to break opposing teams more easily and is the speed control for the team. Toxapex is the Greninja switch-in and the set-up sweeper check. Lando-T is the Stealth Rock setter and specially defensive pivot that can also punish the most spammable move ever, U-turn. Kartana is the hazard control for the team.
https://pokepast.es/bf07e2305adefeca
NP Ground Z Hydrei *
This is a balance built around Nasty Plot Groundium Z Hydreigon. Hydreigon acts as a mid- to end-game breaker that can take surprise 'mons like that would switch in otherwise like Clefable, which if max HP and Def gets OHKO'd by +2 Tectonic Rage (Ground Z). Melmetal is the Ie-, Fairy-, and Dragon-type attack switch-in. It can also be played quite offensively (and you can make ballsy plays) thanks to its Assault Vest. Suprpower weakens Steels, Ferrothorn, and opposing Darks. Toxapex + Lando-T is best defensive core (a.k.a. the one I spam; look at teams above). WishTect Chansey is to scout out for Tapu Lele, as it just goes to ham on this team with its STABs + Focus Blast. It also heals up Melmetal after it's taken some chip. Tapu Fini acts as the defogger and (as another) Greninja switch-in, all in one
https://pokepast.es/c65413facc8ff92d
Zard Y Offense
This is an offense around Mega Charizard Y; basic Roost 3 Attacks. Charizard destroys Steels which Kartana appreciates. Also, because of MChar Y's gargantuan weakness to Stealth Rock, it requires hazard control. Kartana is that hazard control; it also takes care of many, common hazard setters, namely Rock-types. Weavile acts as a secondary breaker taking care of faster threats for MChar Y like the Mega Latis. Tapu Fini is the Greninja counter and secondary hazard clearer. Yes, I do realize that this is Double Defog; that is for MChar Y. Lando-T is the specially defensive pivot that take scare of Rocks as well, and Tapu Lele is the speed control for MChar Y, as MChar Y's speed tier leaves
a lot to be desired. Tapu also takes care of big threats for MChar Y like Tyranitar, Rain, Zapdos, opposing Weavile, etc.
https://pokepast.es/cbf707db053f3b4a
Zolt + Scarf Lele Sand
In my opinion, all weather is cancer, especially Rain, and, yes, I'm a hypocrite for using Sand; in my defense, at least it's not Rain. This is a Sand team based around Dracozolt, as I wanted to use it because Bolt Beak hits like a truck. Mixed Dracozolt was the way to go as I could use Fire Blast to snipe Ferrothorn and Draco Meteor to snipe Grounds. I was told that the SpA EVs were to OHKO Ferrothorn. It doesn't, but it does 78-93%, meaning you can take care of it, or you free up the possibility of a Lele endgame like in
this battle vs. Sample Rain w/my friend, yes this was a bit fast, and I didn't even use sand but still. Hippowdon is the hazard and weather setter with Stealth Rock and Sand Stream, respectively. Corviknight act as the defogger for the team. Mega Garchomp is a secondary abuser of the Sand with Sand Force, and can act as a cleaner with both Swords Dance and Scale Shot. Now,
the old version of this team was weak to Weavile, so I changed the last two 'mons from Reuniclus and Ferrothorn to Tapu Fini and Tapu Lele. Tapu Fini provides a counter to Weavile and Greninja, and it can do it for prolonged periods of time thanks to Z-Haze recovering your health back to full while Tapu Lele provides an offensive check to Weavile with Scarf and Moonblast (Thunderbolt can be run over Psychic.). As you can tell by all the writing, this is my favorite team out of all of them in this dump.
https://pokepast.es/ff7373b101c1fff8
SD Norm Z Kart
I've been trying to make this team work for a while now; an offense around SD Z Kart. Kartana cleans once all faster are taken care with its combination of Swords Dance and Beast Boost. Z-Giga Impact allows Kartana to take care of foes like Zapdos, but Tyranitar take care of it if has to save it for something else. Tyranitar also sets up Stealth Rock and Pursuit traps Mega Latias and the like. Magnezone takes care of Steels such as Corviknight, Skarmory, and Scizor that Kartana has a pain in the butt breaking through. While it still can, Zone just makes its job easier. Tapu Fini acts as the defogger, wallbreaker (stallbreaker too ig) with Taunt, and the Greninja switch-in. Lando-T has Hidden Power Ice to snipe (most importantly chip) Gliscor, Zapdos, opposing Lando-T, etc. because (and, no, I'm not going to make up an excuse for why I have HP Ice) I realized I had a second Stealth Rock setter and wasn't too sure what to put for its last move. Finally, Tapu Lele acts as the speed control finishing off and taking care of threats for Kartana.
Hope you enjoy!
is the star of the show here, with Z-Rain Dance letting it boost it's speed and power of water type moves. It's great natural bulk in both stats and typing lets it set up well, possibly getting both a Tail Glow and a Rain Dance in one game. Additionally, it's quite flexible, so you can instead go for Hydro Vortex should that be the best option.
is a great partner. It helps deal with grasses like Tang and Ferro that wall Manaphy hard, and special walls like Blissey.
helps with bulky waters, esp physically defensive ones, deters defog attempts and offers utility in glare.
steal from tf's team dump in the bazaar (it's the same set of mons with some tweaks).
Very threatening, great for momentum with u-turn, sd + technician bullet punch takes out a lot. 
