In Adventure 02, was BlackWarGreymon's death senseless? BlackWarGreymon did seal the Hikarigaoka gate with his body, but Oikawa used the same card system as Myotismon but in the 1st slot he used an Agumon card, whereas in Adventure Taichi opened the correct gate with a Gommamon card. Gennai explained that if the wrong cards were used a different world might be opened. Since the agumon card was used, could it be possible that a different gate was opened, and that BlackWarGreymon sealing the gate had no effect whatsoever?