Dialga

ディアルガ

Dialga is a dark-blue, sauropod-like Pokémon featuring gray metallic sections and light blue stripes. A chest plate adorns its torso, centered with a deep blue, diamond-like crystal. On its back, Dialga possesses a five-spiked, gear-like fin structure, along with three spines on the nape of its neck and a dinosaur-like crest on its head. This crest vaguely resembles the rod of a sundial. Two structures extend outward from the sides of its head, resembling horns and fangs. Each foot bears three claws that share the metallic appearance of its chest plate.
Hisui/Sinnoh myths and legends state that at the beginning of existence, the Mythical Pokémon Arceus created eggs from which Dialga (the Pokémon of time), Palkia (the Pokémon of space), and Giratina (the Pokémon of antimatter) hatched, all in their Origin Formes. Arceus also created the lake guardians, tasking them with calming Dialga or Palkia whenever they became enraged. After the Pokémon universe was formed, Dialga retreated into its own dimension, where it has resided ever since. In the past, it was revered and feared as a deity; the Diamond Clan worshiped it, mistaking it for Arceus and referring to it as "almighty Sinnoh". Dialga can speak human language via telepathy, as demonstrated when it communicates through Adaman, the leader of the Diamond Clan. Powerful space-time distortions created by Giratina may also throw Dialga and Palkia into a frenzy. They can control and spread these distortions, which generates alpha Pokémon and causes noble Pokémon to become frenzied through lightning bolts emanating from them.
Dialga controls time: it can warp time by speeding it up, slowing it down, reversing it, or stopping it completely. It can also travel through time to visit the past, present, and future. Additionally, it can blast targets with power that distorts time itself. Dialga holds the power to destroy and create an entire universe, either alone or with Palkia's aid. As shown in Pokémon Journeys: The Series, Dialga's temporal powers can cause Pokémon to devolve and make people and plant life younger, effects it can reverse. It is said that time began moving when Dialga was born and will continue flowing as long as its heart beats. Dialga usually travels by levitating. Because it primarily resides in a different dimension, its behavior is nearly impossible to study. In the anime, Dialga appears very protective of its home, leading to violent conflicts with Palkia when their dimensions intersect. The fin-like structure on its back radiates outward and can focus the flow of time, as seen in Pokémon Mystery Dungeon.
Forms
Dialga can switch between its standard form and its Origin Forme.
Described as its true appearance, Dialga's Origin Forme differs drastically from its usual sauropod-like look, appearing as a hybrid of a sauropod, a dragon, and a centaur, while also resembling its creator, Arceus. Dialga's back legs become unguligrade with pointed tips instead of feet. The front legs are noticeably larger, featuring three distinct rhomboid claws on the underside. Higher up, rectangular, long, and thin protrusions extend from Dialga's knees. The chest plate is absent, replaced by a similar polygonal shape. A large shape juts forward from Dialga's neck (creating the appearance of a larger throat), accompanied by two pairs of protrusions on either side, with the upper pair being larger and resembling panels or wings. Deep blue, diamond-like crystals are embedded in diamond-shaped grooves inside this large shape and the wing-like protrusions. The three spines on the back of its neck are longer and sharper. Dialga's head features two thin, arrow-shaped horns extending toward the top and back, along with longer, fang-like horns connected to a plate mask covering its lower jaw, which can shift in angle to reveal the mouth. This plate mask also partly covers the arrow-shaped horns on the sides. Around Dialga's abdomen is a cross made of four arrow shapes attached to a small wheel, reminiscent of Arceus's cross-wheel. The fin-like plate on Dialga's posterior has a star-shaped layer on top. The tail is much shorter and crystal-shaped. Overall, Dialga's entire body becomes larger and nearly completely dark blue. The crest, arrow-shaped horns, knee protrusions, and abdomen cross are light blue, while the tips of Dialga's fin-like plate and feet are dark gray.
Dialga is at full power in its Origin Forme and is supposedly permanently in this state within its home dimension, where time is said to constantly move in different directions and speeds. It possesses the power to warp, destroy, and create time. A radiant light triggers Dialga's transformation into its Origin Forme; it can also be invoked using the Adamant Crystal. Origin Forme Dialga can unleash meteors and shockwaves, and its Roar of Time can be charged into a stronger version of itself, as seen in its boss battle in Pokémon Legends: Arceus. The crystals and light blue accents on Dialga's body glow brightly when it uses its powers.
Primal Dialga
A unique variant called Primal Dialga resembles a normal Dialga but with a darkened color scheme. The main body is dark blue. The center diamond-like crystal is dark orange, and the lines on its body are also orange.
Primal Dialga cannot control time because it has been tampered with. It acts much more aggressively than Dialga normally would. It can still use its time abilities to some extent. It can also prevent others from time traveling, even canceling out Celebi's time powers.