What are some good Volcanion sets, and some good teammates?
Depending on the set, you will have different possible teammates, but there are a few things you want either way to support Volcanion
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Pivots that give Volcanion entry against bulky Steel and/or bulky Ground types
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Speed control / cleaners that appreciates pressure being put on special walls and/or bulky waters
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Stealth Rock to help it wallbreak / pick up kos
- Reliable defensive
counterplay for fast
Electric and Ground types
mons that fit one or more of these criteria are lando-t, torn-t, tapu koko, weavile, ferrothorn, garchomp, clefable, zapdos,...
also specs volcanion can be a good rain abuser since it spams powerful water stabs without fearing ferrothorn, tapu fini and toxapex thanks to flamethrower, sludge wave and earth power, respectively


Volcanion @ Choice Specs
Ability: Water Absorb
EVs: 252 SpA / 4 SpD / 252 Spe
Modest or Timid Nature
IVs: 0 Atk
- Steam Eruption
- Flamethrower
- Earth Power
- Sludge Wave
choice specs volcanion has nuclear power by itself but needs a good
Defogger by its side to do its job properly, without getting worn down quickly by rocks


Volcanion @ Heavy-Duty Boots
Ability: Water Absorb
EVs: 252 SpA / 4 SpD / 252 Spe
Modest / Timid Nature
IVs: 0 Atk
- Steam Eruption
- Flamethrower
- Earth Power
- Sludge Wave / Substitute / Defog
boots 4a, sub+3a or defog+3a are more self sustained but don't pack enough power to wallbreak effectively without
spikes. small note, the defog set should NOT be your primary defogger unless you're running this on some extreme offensive teams and even then, both 4a and sub+3a are better imo. the defogger set should most likely be timid to outspeed modest heatran and pretty much every variant of bulky landorus-t.
other niche sets might include situational moves such as flame charge or toxic, but those haven't been nearly as consistent or even relevant as the two I mentioned.
https://www.smogon.com/forums/threa...nion-submissions.3660737/page-37#post-9112105
you may also want to keep an eye on this thread since the timing of your question ended up being perfect with my choice for the featured mon on this project. stay tuned for the next days to hopefully see some more inspiration for your Volcanion team and, maybe, you could submit it there as well.