Seraphimon

Seraphymon is Mega form of Patamon.

Digimon: The Movie
Seraphymon is one of the keepers of the golden Digi-Eggs, the other being Magnadramon. During the battle, Angewomon and Angemon warp digivolved into their Mega forms to release the Golden Digi-Eggs. After releasing them, the two Megas could not stay in this form and had to degenerate into Gatomon and Patamon.

Gallery
See more pictures of Seraphymon (Photo Gallery)

Trivia

 * This form was never actually shown in the anime along with Magnadramon.