Dialga

Dialga is a dark-blue, sauropod-like Pokémon with some gray metallic portions and light blue stripes. It has a chest plate on its torso, which has a deep blue diamond-like crystal embedded in the center. Dialga has a five-spiked fin-like structure on its back similar to a gear, three spines on the back of its neck, and a crest on its head, resembling a dinosaur. The crest somewhat resembles the shape of a sundial's rod. It also has two structures on the sides of its head that extend outward and resemble horns and fangs. It has three claws on each foot, of the same metallic look as its chest plate.

According to the myths and legends of the Hisui/Sinnoh region, in the beginning of existence, the Mythical Pokémon created eggs in which the Pokémon of time–Dialga, the Pokémon of space–, and the Pokémon of antimatter–, hatched from, all three in their Origin Formes. After the Pokémon universe was created, Dialga retreated into its own dimension, where it has lived since. It was revered and feared as a deity in the past, being worshiped by the Diamond Clan, who mistook it for Arceus and referred to it as "almighty Sinnoh". Dialga is capable of speaking human language via telepathy, as seen when it communicates through the leader of the Diamond Clan, Adaman. Dialga and Palkia may be also thrown into a frenzy by powerful space-time rifts created by Giratina. Both can also control and spread the space-time distortions from Giratina's rift, which create alpha Pokémon and cause noble Pokémon to become frenzied through lightning bolts that come out of these distortions.

Dialga has the power to control time: it can warp time by either speeding it up, slowing it down, reversing it, or stopping it altogether. It can also travel through time to visit the past, present, and future. Additionally, it is capable of blasting its targets with power that distorts time itself. It also has the power to destroy and create an entire universe, either by itself or with Palkia's aid. As shown in Pokémon Journeys: The Series, Dialga's temporal powers possess the ability to devolve anything or anyone against their will, including Pokémon, people, and plant life. It can reverse these effects as well. It is said that time started moving when Dialga was born and will continue flowing as long as its heart beats. Dialga usually travels by levitating. Since Dialga primarily resides in a different dimension, its behavior is nearly impossible to study. In the dimension where Dialga lives in, time is said to be constantly moving in different directions and speeds. In the anime, it has been shown to be very protective of its home, and as a result, tends to have violent conflicts with Palkia when their dimensions intersect. The fin-like structure on its back is shaped radiating outwards and can be used to focus the flow of time, as seen in Pokémon Mystery Dungeon.