Use the following steps to have Imperialdramon Paladin mode as permanent Digivolution. First, you must have a permanent Omnimon. To do this, have a Wargreymon and Metalgarrurumon at Level 40. This gives you Omnimon. Next, you must have a Permanent Imperialdramon fighter mode. To do this, have a Imperialdramon dragon mode and at level 99. During a fight, DNA Digivolve Omnimon and Imperialdramon fighter mode to have Paladin mode. He will do an attack then disappear and de-digivolve. The next time you fight as Imperialdramon fighter mode, he can digivolve to Paladin mode anytime.

Use these steps to get Imperialdramon Paladin mode as a digivolution instead of DNA digivolution. It only appears once in battle and eats away at both Digimon's MP every time you do it. Veemon is the easiest to use to get Imperialdramon Paladin. Raise Veemon to level 5 for ExVeemon. Then, raise ExVeemon to level 30 for Stingmon. After that, raise Stingmon to level 5 and Veemon to level 20 for Paildramon. Raise Paildramon until he learns his signature attack. By then, you should have earned MetalMamemon and Greymon. If not, you have to train Veemon's machine resistant (go to Togemon's gym) and defense until he does. Train MetalMamemon until he learns MetalGarurumon (you might have to train machine resistant a little more). Then, train MetalGarurumon until level 40. Now train Greymon to level 40, MetalGreymon to level 99, and WarGreymon to level 40, and you should earn Omnimon. Train him to level 40. By then, Veemon should be past level 40 and have earned Imperialdramon. Train him to level 99 to earn Imperialdramon Fighter mode, then train him to level 40 and Imperialdramon Paladin mode is yours without DNA digivolving and using MP.

To get an Imperialdramon Dragon mode, you must have a Paildramon and grow it to level 50.