Celesteela does not evolve and does not have a pre-evolved form.
Celesteela is in the Undiscovered Egg Group. It takes Celesteela 1,250,000 Experience Points to reach Level 100.
Celesteela is yet to appear in a spin-off game.
Trading Card Game
Celesteela is yet to appear in the Trading Card Game.
Celesteela is yet to appear in the anime.
Celesteela is yet to appear in the movies.
Celesteela is yet to appear in the manga.
Celesteela is in the Overused (OU) tier of competitive battling, standing out as one of the best Pokémon in the tier. This is due to its great defensive typing and very well-rounded stats that give it a very defined niche in the tier. Celesteela can check a number of threats thanks to its well balanced defenses and typing, lending it to stop Pokémon like Tapu Lele, Mega Diancie, Mega Alakazam, Garchomp, Latios, Tapu Bulu, and Landorus-T. Even though Celesteela lacks reliable recovery, Leech Seed gives it enough healing opportunities against non Grass-types. While Celesteela is best used as a mixed wall, it also can function as an offensive sweeper thanks to Autotomize boosting its mediocre Speed, great overall coverage, and its ability Beast Boost which provides a snowball effect after Celesteela can knock out an opposing foe. While a phenomenal Pokémon overall, Celesteela suffers from the high usage of Zapdos, which walls it easily and can PP stall out Leech Seed thanks to Pressure. While Celesteela can check a lot of Pokémon, some Pokémon like Tapu Lele and Latios run Z-Move coverage moves to remove or drastically weaken Celesteela.
Celesteela is also a viable option in the Uber tier of competitive battling, where it maintains its role as a very solid defensive presence. Its useful resistances to common types, immunity to Toxic, and a Ground immunity give it major advantages when checking the likes of Arceus-Ground, Arceus, Arceus-Fairy, Excadrill, Mega Salamence, Excadrill, Deoxys-A, and Primal Groudon that lack Fire coverage. Celesteela lacks reliable recovery, but thanks to the combination of Leech Seed, Protect, and Leftovers, it can hold its own and stay healthy throughout a match without too much of a problem. Celesteela's offensive prowess is not too shabby as well, as with a decent Attack stat and Heavy Slam, it can manage to deal a decent chunk of damage to opposing foes. Beast Boost can help on occasion for Celesteela as it gives a boost to its highest invested stat, which is typically Defense for this metagame. Celesteela's main problems root in its weaknesses to Fire and Electric. Its Fire weakness makes it vulnerable to Fire-types like Ho-oh and Primal Groudon with Fire attacks as well as coverage attacks from Dialga, Rayquaza, certain Arceus formes, and Mega Mewtwo Y. The Electric weakness prevents Celesteela from checking Geomancy Xerneas, as those commonly run Thunder. Celesteela faces competition from Skarmory, which has access to Spikes and reliable recovery in Roost. However, Celesteela's decent offensive presence gives it the ability to function as a tank while wearing down foes with Leech Seed and Toxic and checking similar threats, giving it an edge over its Steel / Flying counterpart. Steel's poor coverage makes Celesteela vulnerable to being setup bait for threatening sweepers like Mega Lucario, Primal Kyogre, and Zekrom.