With its great Special Attack, good Speed augmented by Booster Energy, and a long list of coverage moves to pick from, Iron Moth becomes one of OU's premier offensive threats. Iron Moth not only acts as a revenge killer but also can quickly snowball as a sweeper with Fiery Dance's boosts, plus it offers defensive utility for its team by absorbing Toxic Spikes and checking the likes of Iron Valiant, Enamorus, Rillaboom, and Gholdengo. Dazzling Gleam may be used to hit the likes of Dragapult, Hisuian Samurott, and Dragonite; its power may be augmented by Tera Fairy to score OHKOs against Dragapult and Hisuian Samurott. Tera Fairy also provides Iron Moth a resistance to revenge kill attempts via Kingambit's and Hisuian Samurott's Sucker Punch and an immunity to Dragon-type moves such as Dragapult's Dragon Darts and Raging Bolt's Draco Meteor. Energy Ball is another option to hit the likes of Alomomola, Dondozo, and Garganacl, with Tera Grass providing the extra power to OHKO Great Tusk; furthermore, Tera Grass's resistance to Earthquake greatly improves Iron Moth's matchup against Ting-Lu, which it can 2HKO with Energy Ball after one Fiery Dance Boost. Psychic is an option to hit Glimmora, Toxapex, Clodsire, and opposing Iron Moth. Toxic Spikes lets Iron Moth take advantage of a free turn to further aid its teammates while also crippling its own checks that would usually try to take it on such as Ting-Lu, Assault Vest Alomomola, and Tyranitar. Whirlwind may also be used alongside Toxic Spikes to more easily force poison on the opposing team and to phaze slower foes that may try to phaze Iron Moth itself, such as Roar Zamazenta and Whirlwind Ting-Lu. Substitute may be used to leverage the switches that Iron Moth usually forces; deny revenge killing attempts from Kingambit's Sucker Punch and Raging Bolt's Thunderclap; block status moves such as Galarian Slowking's Thunder Wave; and take advantage of Garganacl's Salt Cure, which does not break Substitute after Iron Moth Terastallizes. On sun teams, Iron Moth may run Solar Beam for a stronger Grass-type coverage over Energy Ball, Morning Sun to remain healthy, or Overheat alongside Tera Fire to stack damage multipliers to overwhelm neutral checks like Galarian Slowking and Clodsire. Tera Ghost grants Iron Moth an immunity to Dragonite's Extreme Speed and Blissey's Seismic Toss, denying revenge killing attempts from the former while potentially letting it wall the latter. 132 Special Attack EVs allow Iron Moth to attain a Speed boost with Booster Energy, and the remaining 124 EVs are allocated in Defense to make up for Iron Moth's poor physical bulk, in particular preventing its Substitute from being broken by Garganacl's Salt Cure after Terastallizing, letting it take on mixed or Psyshock Iron Valiant better, and preventing it from being picked off by priority attacks from foes like Dragonite and Kingambit as easily. Maximum Special Attack and Speed may also be considered, as Booster Energy will now augment Iron Moth's sky-high Special Attack; this is particularly appreciated on Sticky Web teams that can compensate for the lack of Speed boost or on sun teams, which might prefer Iron Moth wallbreaking more than sweeping.
Iron Moth is usually found on offense teams, with their fast-paced style reducing the negative effect of Booster Energy's one-time use. Physical attackers such as Dragonite and Zamazenta appreciate Iron Moth's good matchup against physical walls such as Pecharunt, Galarian Weezing, Clefable, and even Iron Defense Zamazenta to an extent, as Iron Moth outspeeds it and resists its Body Press; in turn, they can take on Heatran and Ting-Lu, which trouble Iron Moth. Similarly, Great Tusk, Ting-Lu, and Landorus-T can check Heatran, Glimmora, and Galarian Slowking while benefiting from Iron Moth's good matchup against Corviknight, RIllaboom, and Ogerpon; these Pokemon also provide entry hazards to soften foes for Iron Moth, with Great Tusk and Landorus-T removing hazards that chip Iron Moth or preventing setup of such with Rapid Spin and Taunt, respectively. Ogerpon-W and Rillaboom appreciate Iron Moth checking Galarian Weezing, Pecharunt, and Hydrapple for them,and they may chip at the likes of Dragonite so that Iron Moth has an easier time cleaning late-game. Special attackers like Gholdengo and Deoxys-S may be paired with Iron Moth to weaken shared checks such as Ting-Lu and Assault Vest Hisuian Samurott. Similarly, Iron Valiant can pressure shared checks in Assault Vest Primarina and Galarian Slowking, while Iron Moth handles Gholdengo, Clefable, and Scizor, which may trouble Iron Valiant. Iron Moth often finds itself on sun and Sticky Web teams, where Raging Bolt also shines; not only does Raging Bolt weaken shared checks such as Ting-Lu and Clodsire, but it also takes on Assault Vest Alomomola and Hisuian Samurott. Walking Wake and Slither Wing also often find themselves on sun teams and appreciate Iron Moth's ability to take on Fairy-types such as Iron Valiant and Enamorus, while they are able to threaten Iron Moth checks such as Heatran and Ting-Lu, as well as Blissey in Slither Wing's case.