From Bulbapedia, the community-driven Pokémon encyclopedia.
One of Nagasawa's illustrations
Shin Nagasawa (Japanese: 長澤真) is an illustrator for the Pokémon Trading Card Game. He started illustrating cards for the Beat of the Frontier expansion. He is credited for both of Tower Tycoon Palmer's Pokémon , Dragonite FB and Regigigas FB. So far, he has illustrated 149 cards for the trading card game, and is expected to do more. He has also done the packaging artwork for Boundaries Crossed Plasma Storm, Plasma Freeze, and the upcoming Plasma Blast. For a list of cards he illustrated, go here.
Not only has Nagasawa worked on Pokémon trading cards, he has worked on video games and comic books throughout the years. Some of the recent games he has worked on are Luminous Arc 2 and Etrian Odyssey II: Heroes of Lagaard for Nintendo DS but he has also been briefly credited for Square Co. as a monster concept artist for a few games released in the late 1990's. As a comic artist and inker, his most famous works are the spinoff comics based on Marvel Comics's Wolverine character in the Wolverine Soultaker series.
Nagasawa's personal website