Having the strongest Pokémon is significant for trainers due to its impact on battles and overcoming in-game challenges, such as Gym Leaders and the Elite Four. Achieving victories in battles and earning prestigious badges or rewards contribute to a sense of accomplishment and progression. In the competitive scene, trainers engage in battles and tournaments, where having strong Pokémon is essential for success. Accessing higher-level content like Pokémon Leagues often requires a team of powerful Pokémon, motivating trainers to seek strength. Beyond the competitive aspect, building a strong and well-balanced team provides personal satisfaction and contributes to the strategic enjoyment of the Pokémon experience.
Arceus is, without a doubt, the most powerful Legendary Pokémon. This Normal type Mythical Pokémon is the creator of the universe and thus the closest that the Pokémon world has to a god. When it hatched from its egg, Arceus brought with it time, space, and antimatter in the form of the Creation Trio. Later it created the Lake Guardians Uxie, Mesprit, and Azelf. These three are respectively the embodiment and bringers of knowledge, emotion, and willpower. Arceus has the exclusive ability Multitype, which allows it to change its type depending on the plate or type-specific Z-Crystal it holds. It can speak using telepathy, and is easily able to control other Legendaries. As both an opponent and ally, Arceus is unmatched.
The Psychic type Pokémon Mewtwo is a man-made, genetically enhanced version of the Mythical Pokémon Mew. Mewtwo is one of the most formidable Pokémon ever to exist. It is able to use the powers typical of its type, as well as telekinesis and telepathy. And it makes impressive use of these abilities. The telekinesis allows it to fly and the telepathy helps it translate the Pokémon language and communicate with people. Mewtwo is so emotionally complex that it is often likened to a human. This prideful Pokémon is very aware of its immense power levels, causing it to act domineering. It will use its abilities to impress and even intimidate. Canonical events confirm that Mewtwo can endure extreme physical duress, teleport great distances, and learn and adapt during battle without the help of a Trainer or Pokémon Master..
Giratina was created by Arceus to control antimatter. The final member of the Creation Trio, Giratina is a Ghost/Dragon type Pokémon with stunning capabilities. It can control who enters the Distortion World — a world that exists on the reverse side of ours. Giratina was initially banished here for its temper, uncontrollable violence, and penchant for destruction. In the Distortion World, Giratina is supposed to look upon the old world as it learns to control its rage.
Dialga was born as the guardian and inception of time itself. Thus this Steel/Dragon type can control time, traveling at will through the past and future. Its special ability, Pressure, causes its opponent to use twice as many Power Points for every move made. Since PP measure the amount of times a move can be used, this ability is obviously related to Dialga’s mythology. Finally, the flow of time is also directly related to the beating of Dialga’s heart.
According to Sinnoh legend, when the universe began, Arceus created Pokémon to craft the universe — the Creation Trio. When the Water/Dragon type Palkia was born, space expanded. The physical and conceptual ideas of spaces are also connected to Palkia’s wellbeing. As such, if Palkia were to perish, it would cause the destruction of the universe as we know it. Palkia can also distort space as well as create new dimensions. This gives it the ability to live and travel in different dimensions.