Rhyperior

Rhyperior is an excellent Pokemon, being able to set Stealth Rock, take hits, and deal damage in return. Rhyperior's typing and bulk allow it to stand up against many threats in the tier, including Entei, Mimikyu, and Maushold, while its powerful STAB EdgeQuake can overwhelm Pokemon like Bisharp, Jirachi, and Noivern. Rhyperior is a great Stealth Rock user due to how it threatens common entry hazard removal options like Cyclizar and Talonflame. Additionally, Swords Dance allows it to break through bulkier Pokemon like Slowbro and Hippowdon. Rhyperior is a good user of Terastallization, as it can shed weaknesses it easily falters to, such as Water, Grass, Fighting, and Ground, and better handle threats that capitalize on its new Fairy and Dark weaknesses such as Mimikyu and Bisharp. However, Rhyperior has a 4x weakness to Water and Grass, meaning that—even though it carries Solid Rock—many attacks of these types like Scald, Steam Eruption, and Energy Ball are capable of OHKOing it. Rhyperior's poor Speed exacerbates this issue, as any Pokemon with the right moves can deal severe damage to it, ensuring it can easily be finished off later. Despite Rhyperior's strength, it struggles against common Pokemon like Slowbro and Chesnaught, both of which can easily heal its damage off.