Imperialdramon Fighter Mode

Imperialdramon Fighter Mode from the Digimon 02 series. Once his full potential realised, Imperial Dramon has become Fighter-mode. Taking on a human shape has enabled more precise control over his immense power. His offensive possesses the strength to destroy even a planet.

Digimon: Adventures 2
It was first used in Episode 43 of the Digimon adventure Two Series. When Skull Satamon froze Imperial Dramon and the Digimon of the older Digi-Destined de-digivolved from their Ultimate level forms because they weren't used to being in the real world for so long. They along with the Digimon of the younger Digi-Destined gave the remaining power they received from Azulongmon allowing Imperial Dramon to Mode Change to Imperial Dramon Fighter Mode. He is second most powerful hero Digimon after Omnimon

Diaboromon's Strikes Back
In Movie 4 after Omnimon lost to Armageddemon, Daisuke Motomiya and Ken Ichijouji were able to locate Veemon and Wormmon (They were separated after the Kuramon began to merge in the Real World). They digivolved into Imperial Dramon Fighter Mode and tried to use their Giga Crusher (A different version of what was used in the Tv Series) however it wasn't strong enough and Imperial Dramon was injured in Armageddemon's counterattack. In the end Omnimon gave its remaining energy to ImperialDramon Fighter Mode by having its main body become a sword the Omega Sword (Omega Blade) which transformed Imperial Dramon Fighter Mode into Imperial Dramon Paladin Mode