Dialga is a dark-blue, sauropod-like Pokémon with some gray metallic portions, such as its chest plate, which has a diamond in the center. It also has various light blue stripes. It has a fin-like structure on its back and a crest on its head, resembling a dinosaur. Dialga also has two horns on top of its head, two fang-like horns around its mouth, and three spines on the back of its neck. It has three claws on each foot of the same metallic looks as its chest plate. Faint cracks exist across its body. The wing-like structure on its back can be used to focus the flow of time.

Dialga can warp time by either speeding it up, slowing it down, or stopping it altogether. It can also travel through time to visit the past, present, and future. It is said that time started moving when Dialga was born and will continue flowing as long as Dialga's heart still beats.

(Source: Bulbapedia)

The manga is based on the Pokémon Mystery Dungeon: Explorers of Time and Explorers of Darkness games.
 
The story revolves around Honō, an amnesiac human who wakes up as a Chimchar. He meets a cowardly Totodile, and together, they form Team Blaze. 
 
(Source: Bulbapedia)

Daniel Arsham × Pokémon collabrative animation. This animated short is directed by Kunihiko Yuyama (chief director of the original Pocket Monsters anime) and was initially shown off at Daniel Arsham's "A Ripple in Time" art exhibition in Tokyo. 
Note: A minute-long preview was previously released on January 27, 2022 in Pokemon's official YouTube channel.

Mezase Pokémon Master celebrates the final chapter in Satoshi and Pikachu's story, with their first companions and many Pokémon they have met throughout their journeys making their return.

A story of a child's dream of the world of Pokémon. While his father works, the son explores the worlds of Pokémon throught he father's old collection of Game Boy, Game Boy Adance, Nintendo DS and Nintendo 3DS games and, as he does so, builds a bond with his father