Angewomon

Angewomon is Ultimate form of Salamon.

Digimon Adventure
In Wizardmon's Gift,

In Prophecy,

In The Battle for Earth,

In Enter The Dark Masters,

In Ogremon's Honor,

In The Crest of Light,

In Joe's Battle,

In Piedmon's Last Jest,

In Now Apocalymon,

In The Fate of Two Worlds,

Digimon: The Movie
She appears along with Angemon to save the other Digimon from Cherubimon, then they digivolve into mega form. Angemon became Seraphimon and Angewomon became Magnadramon.

Digimon Adventure 02
In His Master's Voice,

In Digimon World Tour, Part 1,

In Invasion of the Daemon Corps,

In The Last Temptation of the DigiDestined,

Future
Gatomon digivolve to Angewomon and then digivolve again to her mega form, Magnadramon.