Kommo-o is an unorthodox wallbreaker and setup sweeper that can blow past certain team structures with ease while also providing its team with notable defensive utility thanks to its typing and ability. However, Kommo-o's terrible matchup versus the tier's common Fairy-types such as Clefable and Tapu Lele limits its utility and means it requires significant support to be a consistent choice. Clanging Scales combines with Kommonium Z to give Kommo-o access to Clangorous Soulblaze, a powerful Z-Move that also boosts all of Kommo-o's stats one stage and notably OHKOes Great Tusk and offensive Landorus-T after Stealth Rock. Close Combat is preferred for its power, notably OHKOing Heatran at +1 and improving damage rolls against Melmetal and Mega Diancie. Drain Punch, although much weaker, gives Kommo-o some form of recovery and can let it heal off damage it may have taken while setting up on Pokemon such as Ferrothorn. Flamethrower hits Corviknight, Gholdengo, and Mega Scizor, preventing them from reliably trading with Kommo-o. Kommo-o is a decent Stealth Rock setter, as it dissuades common entry hazard removers such as Great Tusk, Terapagos, and Landorus-T from directly switching into it thanks to its Z-Move. Taunt is another option that allows Kommo-o to shut down Pokemon like Toxapex, Gliscor, and Galarian Slowking that might try to stop it via status or Haze. Clangorous Soul lets Kommo-o set up boosts reliably against teams with a Fairy-type, although it still won't sweep them easily, as Fairy-types like Tapu Lele, Clefable, and Tapu Fini can still take Kommo-o's boosted moves fairly comfortably. Additionally, while setting up both boosts is potentially devastating, it is often difficult to do so and unnecessary in a lot of situations due to Kommo-o's power at +1 often being sufficient. The other two moves are therefore often preferred. Bulletproof is very useful against foes such as Mega Charizard Y and Gholdengo variants lacking Make it Rain, since it lets Kommo-o effectively counter them, turning them into setup fodder.

Kommo-o's threatening nature lets it fit well on offensive teams that want to keep the pressure on while appreciating Kommo-o's ability to check Hisuian Samurott, Mega Charizard Y, and Heatran. Kommo-o struggles greatly against Fairy-types such as Mega Diancie, Tapu Lele, and Clefable, as they easily block its Z-Move while not being appreciably threatened by its coverage moves. Teammates that can take advantage of these Fairy-types are therefore required. Steel-types like Gholdengo, Melmetal, and Corviknight can come in on these Fairy-types and make progress via exerting significant offensive pressure from the former two or pivoting out and gaining momentum with the latter. Gholdengo also assists Stealth Rock variants of Kommo-o by blocking Rapid Spin and Defog attempts from Terapagos, Tornadus-T, and Zapdos. Kommo-o in turn can switch into Fire-types such as Mega Charizard Y and Heatran, which threaten these Steel-types. Frail wallbreakers and cleaners, such as Iron Valiant, Urshifu-R, and Choice Scarf Tapu Lele love Kommo-o providing defensive utility on top of keeping up the offensive pressure for its teammates. Taunt variants work especially well with these teammates, as Kommo-o becomes adept at breaking down defensive cores consisting of Pokemon such as Toxapex, Gliscor, and defensive Landorus-T for these faster teammates. Kommo-o's access to Stealth Rock is useful for these offensive teams, as they sometimes struggle to fit Stealth Rock setters elsewhere, and they don't mind Kommo-o's limited longevity preventing it from setting up Stealth Rock multiple times over the course of a longer game. It notably frees up a moveslot on teammates such as Ferrothorn, Heatran, and Landorus-T. Hyper offense teams can often afford the Clangorous Soul variant of this set, as they generally have a dedicated lead devoted to setting entry hazards up. Teammates such as Iron Valiant, Roaring Moon, and Kingambit often fit on these teams and can pair with Kommo-o to exert immense offensive pressure on the opposing team and beat down their shared checks such as Tapu Lele, Clefable, and Toxapex.