Celesteela

Celesteela is a solid defensive Pokemon in the tier, with a fantastic typing, well-rounded stats, and a large movepool. Steel / Flying typing along with massive bulk allows Celesteela to check many threats in the tier such as Tapu Lele, Mega Diancie, Mega Alakazam, Mega Latios, Garchomp, Tapu Bulu, and Landorus-T. Even though Celesteela lacks reliable recovery, access to Leech Seed allows it to sustain itself against non-Grass-types. However, Celesteela's defenses fail against common threats like Tapu Koko, Mega Charizard Y, and Ash-Greninja. It struggles to make progress against defensive builds featuring Regenerator walls like Toxapex and Tangrowth, and Gliscor, whose Poison Heal lets it break even with Leech Seed's draining. Lastly, its predictability when using Leech Seed and Protect makes it fairly easy to outplay by switching around with different Pokemon.