Talk:BlackWarGreymon vs. Mewtwo/@comment-27589359-20160111022210/@comment-5429941-20160111034140

Under that logic the digimon anime isn't canon either, since the game came before the anime too, which was based on the digital pets that are the original digimon.

Also the manga came before the anime and agumon isn't tai's digimon in the manga, he has Zeromaru as his digimon, which is far more powerful than wargreymon.