Gen 9 Monotype Physically Defensive Stealth Rock (Dragon)
Archaludon @ Leftovers
Ability: Stamina
Tera Type: Steel
EVs: 248 HP / 208 Def / 52 Spe or 248 HP / 176 Def / 32 SpD / 52 Spe
Bold / Impish Nature
- Stealth Rock
- Flash Cannon / Iron Head
- Body Press
- Draco Meteor / Thunderbolt / Thunder Wave
A Stealth Rock set Archaludon can use on Dragon teams in Gen 9 Monotype. Stealth Rock lets Archaludon setup a hazard that chips opposing Pokemon switching in. Flash Cannon is used for a Steel STAB that allows Duraludon to threaten Fairy-types. Iron Head is an alternative so Archaludon can OHKO Flutter Mane. Body Press is Archaludon's main way of attacking since its defense stat will increase thanks to Stamina, making Body Press stronger. Body Press is nice to hit Steel-types such as Heatran, Kingambit, Excadrill, opposing Archaludon, Hisuian Goodra, and Iron Treads super effectively. The last slot depends which Steel STAB you use. If you use Flash Cannon, use Draco Meteor or Thunderbolt. Draco Meteor is used for a powerful Dragon STAB that is useful to hit Dragon-types such as Baxcalibur, Gouging Fire, and Dragapult super effectively. Thunderbolt is used to hit Pokemon such as Corviknight, Azumarill, Primarina, Pelipper, and Skarmory super effectively. If you use Iron Head, Thunder Wave is used so Archaludon doesn't have to use a nature that compromises its bulk or attacking power by using a mixed set. Leftovers is used to give Archaludon a little HP recovery.
The EV spread and Nature you use depend on which Steel STAB you use. If you use Flash Cannon, use the EV spread of 248 HP / 208 / 52 Spe with Bold Nature. Keep in mind that both EV spreads have enough speed to outspeed max speed +speed nature base 50 Pokemon such as Azumarill and Kingambit. If you use Iron Head, use the EV spread of 248 HP / 176 Def / 32 SpD / 52 Spe with Impish nature. The 32 Special Defense EVs combined with the 248 HP EVs allow Archaludon to live a Choice Specs Moonblast from Flutter Mane from full HP, allowing Archaludon to OHKO it with Iron Head.