My approach to it was to fit it in a sun squad, which I'll provide in the end with a description. I've talked a bit about how Ninetales and Venusaur synergize with more details here.
Ninetales, mainly while holding Firium Z, is a really potent wallbreaker. After some two Nasty Plot's it already can OHKO a Blissey with Firium Z. With that in mind, I thought it would really complement Venusaur, as they have common checks and Ninetales provides sun for it. But Ninetales' power could fit a lot of teams that enjoy special wallbreaking in general.
Also, it's important to notice how Hypnosis helps it break stuff better (and helping Venusaur too in the context of my team). While it's pretty clear what Solar Beam does, Hypnosis is a bit overlooked: Ninetales can really force switches, and although it's 60% accurate, if we assume your opponent switches and your Ninetales is faster than the opposing mon, it'll have a chance to hit it twice, meaning it's actually an 84% chance of putting a very likely counter that tried to absorb your hit to sleep.
With this in mind, I do recommend people to try it. I've been using it for 2 weeks now and it's really fun to see Blissey's dropping to a special move. I'll probably try it in a build not focused around Ninetales + Venusaur, because I'm very sure its raw power is enough to fit some builds.
Also, another point I'd like to notice: Although the idea was to build around Firium Z Ninetales specifically, a sun team like mine really appreciates it holding a Heat Rock. Although it doesn't hold a nuke, it still hits hard and gives Venusaur more turns to set-up and clean. So, if you would like to test my team, I'd recommend you to try making Ninetales Heat Rock and Venusaur Poisonium Z, which I've personally enjoyed a bit more, as it also helps Venusaur to break well without taking recoil. But the team is still fun to run even with Firium Z Ninetales. Also be sure to read the description if you'd like my thought process on building the team. Thanks for reading.






Ninetales @ Firium Z
Ability: Drought
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Nasty Plot
- Fire Blast
- Solar Beam
- Hypnosis
Venusaur @ Life Orb
Ability: Chlorophyll
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Sludge Bomb
- Giga Drain
- Hidden Power [Fire]
- Growth
Aerodactyl @ Aerodactylite
Ability: Unnerve
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Ice Fang
- Earthquake
- Stone Edge
- Roost
Swampert @ Leftovers
Ability: Torrent
EVs: 252 HP / 4 Atk / 252 Def
Relaxed Nature
IVs: 0 Spe
- Earthquake
- Scald
- Roar
- Stealth Rock
Muk-Alola @ Assault Vest
Ability: Poison Touch
EVs: 252 HP / 252 Atk / 4 SpD
Adamant Nature
- Knock Off
- Pursuit
- Poison Jab
- Fire Punch
Mantine @ Leftovers
Ability: Water Absorb
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature
IVs: 0 Atk
- Scald
- Haze
- Roost
- Defog
Ability: Drought
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Nasty Plot
- Fire Blast
- Solar Beam
- Hypnosis
Venusaur @ Life Orb
Ability: Chlorophyll
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Sludge Bomb
- Giga Drain
- Hidden Power [Fire]
- Growth
Aerodactyl @ Aerodactylite
Ability: Unnerve
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Ice Fang
- Earthquake
- Stone Edge
- Roost
Swampert @ Leftovers
Ability: Torrent
EVs: 252 HP / 4 Atk / 252 Def
Relaxed Nature
IVs: 0 Spe
- Earthquake
- Scald
- Roar
- Stealth Rock
Muk-Alola @ Assault Vest
Ability: Poison Touch
EVs: 252 HP / 252 Atk / 4 SpD
Adamant Nature
- Knock Off
- Pursuit
- Poison Jab
- Fire Punch
Mantine @ Leftovers
Ability: Water Absorb
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature
IVs: 0 Atk
- Scald
- Haze
- Roost
- Defog
My first thought with Ninetales was attempting a sun build - which ended up as what I'd call a semi-sun build. Looking at the initial core consisting of Venusaur + Ninetales, I felt like I really needed something to pressure Chandelure, as any set could give me a lot of trouble. Because of that, I decided to pick Alolan Muk as a partner, making Chandelure always feel pressured and also giving me a good Latias switch-in.
Now with 3 mons, I realized sun could really backfire at me, as Scarf Infernape would roll through my team once Ninetales was weakened. With this, I decided to go with Swampert, giving me a nice rocker, a Mega-Manectric answer, A Stakataka answer, and mainly a reliable fire resist.
My next pick was Mega-Aerodactyl, because of the before mentioned fire resistance, but also being a reliable bird resist, taking less damage from Water attacks under sun and being a great mon in general. It's Mega-Aero, not much to explain: Nice coverage, incredible speed, great cleaner. Also granting me a normal resist is nice.
With all of this, I felt the need of a defogger. If I could I'd just run Mandibuzz + Chandelure, as I also felt I was Cobalion weak, a bit Scizor weak and a bit Serperior weak (the latter two ones are kinda true still, but they can be played around.). I decided to go with Mantine, granting me another one of those fire resists and a solid Cobalion answer, while also being a nice check to most Scizor checks. Also can spam haze in case Serperior really pressures it (although not the greatest tech, still can save the team sometimes). Probably I may have missed a point on my thought process (I'm very tired haha) but I think that sums up pretty well. Please also try Heat Rock Ninetales + Poisonium Z if you really feel like testing the team, it really makes Venusaur's job potentially easier.
Now with 3 mons, I realized sun could really backfire at me, as Scarf Infernape would roll through my team once Ninetales was weakened. With this, I decided to go with Swampert, giving me a nice rocker, a Mega-Manectric answer, A Stakataka answer, and mainly a reliable fire resist.
My next pick was Mega-Aerodactyl, because of the before mentioned fire resistance, but also being a reliable bird resist, taking less damage from Water attacks under sun and being a great mon in general. It's Mega-Aero, not much to explain: Nice coverage, incredible speed, great cleaner. Also granting me a normal resist is nice.
With all of this, I felt the need of a defogger. If I could I'd just run Mandibuzz + Chandelure, as I also felt I was Cobalion weak, a bit Scizor weak and a bit Serperior weak (the latter two ones are kinda true still, but they can be played around.). I decided to go with Mantine, granting me another one of those fire resists and a solid Cobalion answer, while also being a nice check to most Scizor checks. Also can spam haze in case Serperior really pressures it (although not the greatest tech, still can save the team sometimes). Probably I may have missed a point on my thought process (I'm very tired haha) but I think that sums up pretty well. Please also try Heat Rock Ninetales + Poisonium Z if you really feel like testing the team, it really makes Venusaur's job potentially easier.
https://replay.pokemonshowdown.com/gen7uu-687409171 - helping versus veil because of drought
https://replay.pokemonshowdown.com/gen7uu-689856034 - getting a kill on Celebi and providing Sun for Venusaur
https://replay.pokemonshowdown.com/gen7uu-689705898 - I sadly lost this one game because of a misclick on turn 40, but it was really fun and shows how Ninetales is very hard to switch into, making it break through Amoonguss